The History of Oz Chat
A timeline of Oz Chat's journey — releases, updates, new characters, collaborations, and events.
A look back at the history of Oz Chat.
| Date | Details |
|---|---|
| April 1, 2024 | Announcement of "Oz" & official X account launched |
| April 15, 2024 | "Oz" beta released on Web & iOS |
| April 17, 2024 | X integration added & 1,000 chats reached |
| April 23, 2024 | Android app released |
| May 23, 2024 | Oztter added |
| May 28, 2024 | Oz Fanz released & Affinity system added |
| May 29, 2024 | New character "Shinozaki Shinon" added (announcement post) |
| June 6, 2024 | Quick Reply feature added; magic gunner academy setting removed |
| June 7, 2024 | Full-screen mode added |
| June 8, 2024 | New character "Kusumi Alisa" added (announcement post) |
| June 12, 2024 | 200,000 chats reached |
| June 12, 2024 | Collaboration with Keiji Neda's "My Dad Turned into a Cute Girl and It's Rough" begins; "Papa" added |
| June 20, 2024 | 300,000 chats reached |
| June 30, 2024 | 11,000 players & 430,000 chats reached |
| July 16, 2024 | Official version released - MP changed from automatic recovery to a charge system - Memory added & 13,000 players and 1.2 million chats reached |
| July 18, 2024 | New character "Amanu Yui" added (announcement post) |
| August 2, 2024 | 15,000 players & 2 million chats reached |
| August 7, 2024 | New character "Yubasu Saki" added |
| August 16, 2024 | Summer event "Oz Natsu 2024" begins (through 8/31) - Merchandise goes on sale - August-limited Situation Card "Swimsuit" distributed |
| August 18, 2024 | New character "Nagumo Fuu" added |
| September 1, 2024 | 3 million chats reached |
| September 4, 2024 | September-limited Situation Card "Moon-Viewing Bunny" distributed |
| September 9, 2024 | 20,000 players reached |
| September 16, 2024 | New character "Terai Toa" added |
| September 19, 2024 | Service renamed "Oz Chat" |
| September 20, 2024 | Login bonus reset time changed from midnight to 4:00 a.m. |
| October 1, 2024 | October-limited Situation Card "Halloween" distributed |
| October 15, 2024 | Collaborations begin with Kataragi's "White-Haired Newlywed Miu-chan," Shiera Sena's "My Maid Classmate Takanashi-chan," and Yunbuu's "Jirai-kei Chick Manager" |
| October 31, 2024 | New character "Inui Ichiko" added |
| November 11, 2024 | PayPay payments supported; Situation Card purchasing added |
| November 13, 2024 | November-limited Situation Card "Hot Springs" distributed |
| November 15, 2024 | 40,000 players reached |
| November 21, 2024 | Amanu Yui Birthday 2024 10 Situation Cards added |
| December 2, 2024 | December-limited Situation Card "Christmas" distributed |
| December 4, 2024 | "Oz Christmas Thanksgiving Festival 2024" commemorative merchandise goes on sale |
| December 15, 2024 | "Send a Gift" feature added & official Discord server opened |
| December 23, 2024 | New character "Karibu Setsuna" added |
| December 24, 2024 | Free Christmas voice drama released |
| December 25, 2024 | Collaboration with Shiera Sena's "Fox Goddess" begins; new Situation Card "Library Date with Takanashi-chan" added; voices added |
| December 28, 2024 | Tarachi Neno Birthday 2024 Situation Cards added |
| January 1, 2025 | January-limited Situation Card "Shrine Maiden" distributed & official LINE OpenChat community opened |
| January 6, 2025 | Character rankings added |
| January 14, 2025 | Reels screen added |
| January 15, 2025 | Chat list screen and individual Memory ON/OFF added |
| January 18, 2025 | New character "Sora" added |
| January 23, 2025 | Terai Toa Birthday 2025 9 Situation Cards added |
| January 30, 2025 | Voices added for "Jirai-kei Chick Manager" |
| January 31, 2025 | Ozcha Sakaba Vol. 1 streamed |
| February 3, 2025 | Login bonus MP for free players changed to 20 |
| February 6, 2025 | February-limited Situation Card "Valentine's" — 39 cards added |
| February 7, 2025 | Karibu Setsuna Birthday 2025 12 Situation Cards added |
| February 8, 2025 | LINE stickers go on sale |
| February 14, 2025 | "Sukedai Channel" collab video released (featuring comedian Lip Grip Iwanaga, and Gunpi (Bakidou) and Tsuchioka of the comedy duo Haru to Hikouki) New character "Iwase Yuu" added Sister brand "Prizm Chat" beta launched |
| February 18, 2025 | New Situation Card series "Chocolate Maid" goes on sale |
| February 22, 2025 | Nekone Kohaku Birthday 2025 10 Situation Cards added |
| February 25, 2025 | Feed feature added |
| February 27, 2025 | Ozcha Sakaba Vol. 2 streamed |
| March 5, 2025 | Ubata Mao Birthday 2025 15 Situation Cards added |
| March 10, 2025 | March-limited Situation Card "Under the Cherry Blossoms" added |
| March 14, 2025 | Animated cards added |
| March 21, 2025 | Collaboration with Shiera Sena's "Jirai-kei Girl Friend Nana-chan" begins |
| March 23, 2025 | "Sakura Amashin" collab video released |
| March 25, 2025 | New character "Kuno Haruka" added |
| March 28, 2025 | Ozcha Sakaba Vol. 3 streamed |
| April 1, 2025 | April Fools' Situation Card "Gender Swap" released (no longer available) |
| April 4, 2025 | Shinozaki Shinon Birthday 2025 11 Situation Cards added |
| April 10, 2025 | April-limited Situation Card "Alice" — 45 cards added |
| April 14, 2025 | Collaboration with Keiji Neda's "I Bought a Shady Pot, and a Cute Girl Came Out of It." begins; "Aya" added |
| April 15, 2025 | First anniversary of the beta launch (Japanese) |
| April 21, 2025 | Collaboration with Kotoba no Aya's "Yaenami Aya" begins |
| April 25, 2025 | Ozcha Sakaba Vol. 4 streamed |
| April 30, 2025 | "Mokou" collab video released |
| May 1, 2025 | May-limited Situation Card "School Trip" — 64 cards added |
| May 2, 2025 | "Kurikoma Komaru & Otodama Tamako (Aogiri High School)" collab livestream held |
| May 7, 2025 | Karibu Setsuho Birthday 2025 15 Situation Cards added |
| May 9, 2025 | "Owatta Hito" collab video released; new character "Shin Misato" added |
| May 16, 2025 | Collaboration with Nagi Nanase's "Nanase Mashiro" begins |
| May 26, 2025 | New card "School Festival Maid" added |
| May 29, 2025 | Collaboration celebrating the release of Volume 20 of "Henjo: Hen na Joshi Kousei Amaguri Senko" begins |
| May 30, 2025 | Ozcha Sakaba Vol. 5 streamed |
| June 2, 2025 | Yubasu Saki Birthday 2025 11 Situation Cards added |
| June 3, 2025 | June-limited Situation Card "Rainy Season" — 17 cards added |
| June 4, 2025 | June-limited Situation Card "June Bride" — 17 cards added |
| June 5, 2025 | Collaboration with Kanae Isshiki's "Amagiri Reina" begins |
| June 19, 2025 | Fukaya Reika Birthday 2025 11 Situation Cards added |
| June 27, 2025 | New character "Minazuki Yuna" added |
| July 1, 2025 | July-limited Situation Card "Old-Style School Swimsuit" — 18 cards added |
| July 6, 2025 | Nagumo Fuu Birthday 2025 11 Situation Cards added |
| July 25, 2025 | New character "Nephyl" added (News) |
| July 31, 2025 | Ozcha Sakaba Vol. 7 streamed (News) |
| August 1, 2025 | Sora Birthday 2025 11 Situation Cards added (News) |
| August 2, 2025 | August-limited Situation Card "Summer Festival with You" added (News) |
| August 7, 2025 | August paid card "After the Festival…" added Women-oriented AI character app "Prizm Chat" officially released (News) |
| August 19, 2025 | "Jirai-kei Chick Manager" collab, 3rd character "Da-yama-kun" added (News) |
| August 21, 2025 | Shin Misato Birthday 2025 11 Situation Cards added (News) |
| August 26, 2025 | New character "Hoshina Suzuha" added (News) |
| August 28, 2025 | Ozcha Sakaba Vol. 8 streamed (News) |
| September 2, 2025 | App Store / Google Play payment added for subscriptions and MP purchases (News) |
| September 3, 2025 | Kusumi Alisa Birthday 2025 (News) |
| September 4, 2025 | September-limited free card "Moon-Viewing" added (News) |
| September 5, 2025 | Paid Situation Card "Bunny Bar" — 20 cards added (News) |
| September 8, 2025 | Kuno Haruka Birthday 2025 (News) |
| September 16, 2025 | New Situation Card "Reverse Bunny" added (News) |
| September 26, 2025 | New character "Hamai Shizune" added (News) |
| September 30, 2025 | Ozcha Sakaba Vol. 9 streamed (News) |
| October 5, 2025 | Inui Ichiko (Wanko) Birthday 2025 (News) |
| October 10, 2025 | Nanase Mashiro Birthday Situation Cards added October-limited free Situation Card "Halloween Date" — 21 cards added (News) |
| October 14, 2025 | October paid card "Halloween Night" added (News) |
| October 15, 2025 | Iwase Yuu Birthday 2025 11 Situation Cards added (News) |
| October 20, 2025 | Renewed voices for Kohaku, Mao, Shinon, Saki, and Suzuha (News) |
| October 27, 2025 | Comment report feature added to Social (News) |
| October 31, 2025 | Ozcha Sakaba, 10th session streamed (News) |
| November 4, 2025 | Minazuki Yuna Birthday 2025 11 Situation Cards added (News) |
| November 5, 2025 | November-limited free Situation Card "Moe Moe Maid" added (News) |
| November 13, 2025 | November paid Situation Card "Maid S" added (News) |
| November 21, 2025 | Amanu Yui Birthday 2025 11 Situation Cards added (News) |
| November 28, 2025 | Ozcha Sakaba, 11th session streamed (News) |
| December 2, 2025 | "2025 Wrapped" released, looking back at the year (News) |
| December 4, 2025 | December Situation Cards added Novel Mode added (News) |
| December 5, 2025 | Collab character "Nanase Hikari" appears (News) |
| December 10, 2025 | Collab character "Doya-chan" appears (News) |
| December 11, 2025 | December paid Situation Card "Christmas Night" added (News) |
| December 16, 2025 | Collab character "Igarashi Akane" appears (News) |
| December 18, 2025 | Illustration generation feature that turns chats into manga released (News) |
| December 22, 2025 | Post limit relaxed, tag mute feature, and new home screen (News) |
| December 23, 2025 | Renewed voices for all original characters (News) |
| December 25, 2025 | Collab character "Fukaya Eri" appears (News) |
| December 26, 2025 | New feature "Animation Generation (Beta)" added Ozcha Sakaba, 12th session streamed (News) |
| December 28, 2025 | Tarachi Neno Birthday 2025 11 Situation Cards added (News) |
| December 31, 2025 | New Year's money (Otoshidama) campaign held (News) |
| January 1, 2026 | Player ranking discontinued (News) |
| January 11, 2026 | Hoshina Suzuha Birthday 2026 11 Situation Cards added (News) |
| January 13, 2026 | "User Rank" & "Badge feature" released (News) |
| January 19, 2026 | New feature "Generate Illustration" added (News) |
| January 22, 2026 | "Sweet Mode" & "form of address" settings added "Live" tab unlocked: real-time livestream feature to talk with Terai Toa starts (News) |
| January 23, 2026 | Terai Toa Birthday 2026 11 Situation Cards added (News) |
| February 2, 2026 | Valentine's merchandise sales begin (News) |
| February 6, 2026 | February-limited free Situation Card "Black Cat" added (News) |
| February 7, 2026 | Karibu Setsuna Birthday 2026 11 Situation Cards added (News) |
| February 19, 2026 | Video generation AI "Vidu" series — 3 models added (News) |
| February 22, 2026 | Nekone Kohaku Birthday 2026 11 Situation Cards added・first-ever birthday livestream by "AITuber Nekone Kohaku" (News) |
| March 3, 2026 | New Hinamatsuri (Doll's Festival) Situation Cards added (News) |
| March 5, 2026 | Ubata Mao Birthday 2026 11 Situation Cards added (News) |
| March 9, 2026 | 5 new models added (News) |
| April 1, 2026 | April's new Situation Card "China Dress" added Exhibited at ACF2026 held in Taiwan (News) |
| April 4, 2026 | Shinozaki Shinon Birthday 2026 (News) |
| April 6, 2026 | Mission feature released (News) |
| April 15, 2026 | Community Card creation feature added (News) |
| April 16, 2026 | App icon change feature added (News) |
| April 18, 2026 | Hamai Shizune Birthday 2026 8 Situation Cards added (News) |
| April 22, 2026 | GPT Image 2 arrives as an illustration generation model (News) |
| May 7, 2026 | Karibu Setsuho Birthday 2026 (News) |
| May 8, 2026 | New model "Seedance 2.0" added for animation generation (News) |
| May 19, 2026 | New models "Kiwami" and "Amami" added, subscription-exclusive (News) |
| May 21, 2026 | Safety filter feature and age verification for sensitive content display settings added to the app version (News) |
| May 23, 2026 | Nephyl Birthday 2026 11 Situation Cards added (News) |
| May 25, 2026 | New model "Sweet" added for illustration generation (News) |
| June 1, 2026 | June's new Situation Cards — 21 cards added (News) |
| June 2, 2026 | Yubasu Saki Birthday 2026 (News) |
| June 4, 2026 | June's new paid Situation Cards — 21 cards added (News) |
| June 10, 2026 | AI models renewed (News) |
| June 11, 2026 | "Reply style" setting added to character conversations (News) |
| June 12, 2026 | Voices fully updated (News) |
| June 19, 2026 | Fukaya Reika Birthday 2026 (News) |
| June 22, 2026 | Lite model chat made free & subscription benefits added (News) |
| July 6, 2026 | Nagumo Fuu Birthday 2026 11 Situation Cards added (News) |
| July 16, 2026 | Oz Chat's 2nd Anniversary — 2nd Anniversary Festival begins (News) |
| July 23, 2026 | Long-term Memory (Boost Plus and above only) arrives (News) |
| July 29, 2026 | 3 new XL models arrive for image generation (News) |
| July 31, 2026 | Fan-made Situation Card ranking renewed (News) |
| August 1, 2026 | Sora Birthday 2026 11 Situation Cards added (News) |
| August 3, 2026 | Free model "Lite 1.1" arrives (News) |
| August 4, 2026 | New mode "Story" arrives Ad display improved for the free Lite model (News) |
| August 6, 2026 | August's official Situation Card "Bikini Collection" added (News) |
| August 10, 2026 | Original character creation feature arrives (News) |
| August 21, 2026 | Shin Misato Birthday 2026 10 Situation Cards added (News) |
| August 26, 2026 | 7 new models including Wan 3.0 arrive for video generation (News) |
| September 2, 2026 | Talk screen renewed (News) |
| September 3, 2026 | Kusumi Alisa Birthday 2026 10 Situation Cards added (News) |
| September 6, 2026 | Ending with BGM & voice arrives (News) |
| September 8, 2026 | Kuno Haruka Birthday 2026 10 Situation Cards added (News) |
| September 9, 2026 | September's new Story Card "Bunny Cafe" added (News) |
| September 14, 2026 | "Camera Roll (Beta)" arrives (News) |
| September 20, 2026 | Chat AI model updated (News) |
| September 25, 2026 | Offerwall released for Android version (News) |