Edia Opens Teaser Site for Otome Game PROJECT SIGN: Astraea
MintLip+ is opening its first title through a staged, alternate-reality-style rollout rather than a standard reveal, and the October 19 date is when the brand's actual game (character design, cast) has to arrive.
Key Facts
- Edia opened the teaser site for PROJECT SIGN: Astraea on October 13, 2026.
- PROJECT SIGN: Astraea is planned for release on Nintendo Switch from Edia's MintLip+ brand.
- MintLip+ was established by Edia in October 2025, when two new otome games were announced.
- Materials for PROJECT SIGN: Astraea will be released on October 19, 2026 at 12:00, when the character designer is named.
- Aika Kuboshima is producer and director, Ren Mikado is main scenario writer, Ryoko Seki and Ao no Nui are sub scenario writers, and Shimadamaru-me handles chibi character illustrations.
Reporting from 5 sources: 4Gamer.net, Denfaminicogamer, Automaton, Game Spark, and 1 more.
Edia opened a teaser site on October 13, 2026 for PROJECT SIGN: Astraea, a new otome game from its women's game brand MintLip+. The game is planned for release on Nintendo Switch and is built around crime suspense, with the official X account using an icon modeled on a police badge emblem. On October 9, the project's X account posted a message styled as an email from an unknown sender carrying the line "What is worth betraying justice for?" in Japanese and English. The teaser site issues a mission for users to complete by October 19 at 12:00, when materials for the game will be released; the character designer will be named at the same time. Aika Kuboshima is producer and director, Ren Mikado is the main scenario writer, Ryoko Seki and Ao no Nui are sub scenario writers, and Shimadamaru-me handles chibi character illustrations. MintLip+ was established by Edia in October 2025, when the brand announced two new otome games.
Denfaminicogamer and Automaton both describe PROJECT SIGN: Astraea as the first of the two otome games Edia announced when it established MintLip+ in October 2025, with the second project carrying the name Invisible. At the time of that brand announcement, Edia listed the same core team now attached to Astraea, and named Aika Kuboshima as producer and director, Ren Mikado as main scenario writer, and Shimadamaru-me as chibi character illustrator, with Ryoko Seki and Aono Nui added as sub scenario writers.
Automaton reports that Kuboshima has worked on MintLip titles including Star Sign and AD-Fresh, that Mikado wrote scenarios for Hana no Bakumatsu Koisuru Chou and Yunohana SpRING!, and that Seki was the main scenario writer on Hypnosis Mic -Alternative Rap Battle-. The official X account @Astraea_MLP began a character countdown on October 13, one character per day at 18:00, and a top secret item is set for October 19 at 12:00. The teaser site sits at sin-of-astraea.com, and the project's tagline reads "See the truth, seize your future at will."
Synthesized by Yomimono from the 5 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.
Sources
- 4Gamer.net 女性向けゲームブランド MintLip+，完全新規乙女ゲーム「PROJECT SIGN：Astraea」のティザーサイトを公開。10月19日12：00に“資料”公開へ
- Denfaminicogamer 乙女ゲームブランド「MintLip+」が手がける新作乙女ゲーム第一弾『PROJECT SIGN：Atsraea』ティザーサイトが公開
- Automaton 乙女ゲームブランド「MintLip+」新作“犯罪捜査”恋愛ADV『PROJECT SIGN：Astraea』正式発表。正義の下で、真実と愛が狂いだす
- Game Spark エディア、完全新規乙女ゲーム『PROJECT SIGN：Astraea』のティザーサイトを公開！公式Xも開設
- Inside エディア、完全新規乙女ゲーム『PROJECT SIGN：Astraea』のティザーサイトを公開！公式Xも開設