Seven Seas Licenses Six New Titles Including Ushiyama-san and Mouse Royale

North American publisher Seven Seas Entertainment has announced six new licenses, comprising five manga series and one light novel. The upcoming releases include the light novel My House Cat Became the World’s Strongest?! by Tamaki Yoshigae and LINO, scheduled for June 2027. This story follows a corporate worker whose pet cat grows gigantic and gains supernatural powers during dungeon adventures.
The manga lineup features Ushiyama-san by Haruyoshi Aizawa and Mouse Royale by Junichiro Sasaki, both arriving in August 2027. Ushiyama-san focuses on a popular cowgirl student and her shy batboy admirer, while Mouse Royale depicts rodents surviving a deadly battle royale on an island. Additional titles include The Duke is Obsessed with the Vicious Omega, a mature-rated boys' love manga releasing in August 2027, and This World Is Worth Fighting For by Hatsumi Kodama, set for July 2027. Alice, All the Way to Outer Space by Kiko Urino also joins the roster for July 2027.
Summary written with AI assistance by the Hentaidude News Desk from the original report by Joseph Luster at Crunchyroll News and checked by our automated quality rules. Details may change; see the source for the full story. How we write summaries
Original headline at Crunchyroll News: “Ushiyama-san, Mouse Royale Manga and More Coming from Seven Seas”
Key facts
- Publisher
- Seven Seas Entertainment
- Release Date (My House Cat)
- June 2027
- Release Date (Ushiyama-san)
- August 2027
- Release Date (Mouse Royale)
- August 2027
- Release Date (Duke is Obsessed)
- August 2027
- Release Date (This World Is Worth Fighting For)
- July 2027
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