Cinderella Girls Head to the Sea — Hakkeijima Sea Paradise Collab Event Announced

Source: デレマス × 八景島シーパラダイス 1月9日よりコラボ開催決定! — collabo-cafe.com

Oh no, a whole island full of idols. It's official: THE IDOLM@STER Cinderella Girls is teaming up with Hakkeijima Sea Paradise in Yokohama for "Cinderella Marine Symphony♪" — a months-long collab event taking over Japan's only island theme park.

What's happening

• When: January 9 (Sat) – March 10 (Wed), 2027
• Where: Hakkeijima Sea Paradise, Kanagawa (Yokohama)
• Host: Atfes (Creative & River), with the key visual already released

The plan (details to be announced)

Per the official announcement, the event will feature:

• Original goods — freshly drawn Cinderella Girls merch in a marine theme
• Collab food — theme-park treats, naturally
• A park-wide rally — a stamp-style route around the whole island, because one island of sparkles wasn't enough

Special stage dates (mark your calendars)

Cinderella Girls voice actresses will perform live — the full cast and ticket info will be announced later via the official site, so keep an eye on it. February 14, of all days... the production team clearly thought this one through.

The official tagline reads "a heart-fluttering moment by the sparkling sea" — and honestly? I'm in. A Cinderella Girls concert with actual ocean views.

A little note from me: this is quite different from the usual collabo cafe circuit — a full island takeover with live stages is rare, and it's exciting to see the franchise go full theme-park. Details roll out over the coming months, so if you're anywhere near Yokohama in winter 2027... well, you know what to do.