Houchi Shoujo and Seitokai ni mo Ana wa Aru collaboration starts 27 October
The Houchi Shoujo and Seitokai ni mo Ana wa Aru crossover starts on 27 October, with a reservation campaign offering up to 10 limited gacha tickets.
Houchi Shoujo (放置少女) is teaming up with the anime Seitokai ni mo Ana wa Aru! (生徒会にも穴はある！) for an in-game collaboration starting on 27 October at noon. C4 Connect announced the event alongside a reservation campaign that begins on 20 October and offers up to 10 limited collaboration gacha tickets. 12
The crossover sends the student-council cast into the world of Houchi Shoujo just before their school festival begins. The official campaign site describes the characters being caught up in a sudden otherworldly incident, then dealing with a series of troubles as they try to navigate the unfamiliar setting. 1
The pre-registration event is already live. Players are asked to support the characters as they work through the campaign's problems, with the headline reward being up to 10 collaboration-limited gacha tickets. The campaign also lists commemorative goods and MetaPad among its potential rewards, although the full conditions and reward breakdown remain subject to the event's own terms. 12
The collaboration will also receive a special television commercial from 31 October. That puts the advert's broadcast after the in-game event begins, giving the campaign a second promotional beat rather than using the commercial as the launch announcement.
The official campaign visual brings together the two properties' identities, with Houchi Shoujo's fantasy-RPG presentation framing the anime's student-council characters. Seitokai ni mo Ana wa Aru! is currently airing as a television anime based on Muchimaro's manga, while Houchi Shoujo is the long-running idle RPG developed by C4games and operated by C4 Connect. 12
The event is therefore more than a character-costume drop: its setup gives the anime cast a small crossover story, while the reservation phase gives existing players a reason to check in before the main content arrives. Anyone interested in the collaboration should use the official campaign site for the live schedule and reward requirements rather than relying on reposted screenshots.
Our opinion
This is a sensible crossover structure because it gives both sides a clear entry point: the anime supplies recognisable characters and a story hook, while Houchi Shoujo supplies the event rewards and a reason to participate early. The 27 October start date is close enough that the reservation campaign, rather than vague future promises, is the useful news for players today.