# Battle Kimaira - The Muddied 2-Day Event in the Heart of Winter -
_バトルキマイラ ～真冬のまみれた2DAYS編～_

- **When:** Tue, Dec 15, 2026 18:30 (JST)
- **Where:** Otsuka Live House Hearts+, Toshima — Seiko Garden 11 Otsuka B1F, 2-16-7 Kitaotsuka, Toshima-ku, Tokyo
- **Map:** https://www.google.com/maps/search/?api=1&query=35.733223,139.728531
- **Price:** ¥4,500〜
- **Category:** Shows & Entertainment
- **Official site:** https://mamireta.ryzm.jp/live/3221b8e1-9566-47b7-86f1-26a591cee203
- **On Tokyo Events:** https://eventstokyo.com/en/events/2days

![](https://ryzm.imgee.io/sites/185dd1a9-227f-4cb5-ba29-5fc68a8e56bf/images/b9018b93-1b56-4540-bcc6-f122f1264759?auto=compress,format&lossless=0)

This is a visual-kei live music event held at Otsuka Live House Hearts+ in Tokyo on December 15, 2026, with doors opening at 18:00 and the show starting at 18:30. The lineup includes the acts Mamireta (まみれた), Senketsu A-ko-chan (鮮血A子ちゃん), and DAMNED (ex VELTRO). The event's Japanese title references a "2DAYS" edition, but only this single date could be verified.

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Source: Tokyo Events — https://eventstokyo.com/en/events/2days