Demon Slayer's Infinity Castle arc got a live theatrical run this summer. A stage production covering the Hashira Training and Infinity Castle arcs, "Kimetsu no Yaiba Sono Roku: Hashira Geiko / Mugen Jo Totsunyu," ran June 13-28, 2026 at MoN Takanawa in Tokyo.

A separate retrospective exhibition at the Kyoto Museum of Culture is covering similar ground, revisiting the Swordsmith Village and Hashira Training arcs through footage and displays for fans who'd rather look back than watch live.

Zenitsu Agatsuma remains one of the arc's most consistently popular characters through all of it, and S.H.Figuarts' figure of him is sold out direct at CDJapan, reachable now through their Proxy Shopping Service.