A star choosing to leave at her peak, before she becomes a shadow of herself. Sumire walks away from the only identity she's ever had because staying would mean becoming someone she's not. The OVA doesn't give her a triumphant final battle or a miraculous comeback, it gives her the harder choice, the quieter one, the one that actually costs something.
Sumire's reign as the Kageki-dan's top star faces an unexpected end when a routine training session reveals a troubling truth: her spiritual power has degraded below the threshold needed to operate the Koubu-nishiki mecha. Rather than watch her abilities fade further in the public eye, she makes a quiet decision to step back from active duty while her legacy remains untarnished. What begins as a straightforward retirement becomes something far more complex. Sumire grapples with the weight of leaving behind a life she's dedicated herself to, confronting questions about identity, purpose, and what comes next when your greatest strength becomes your limitation. The other members of the Kageki-dan must reckon with her departure, each carrying their own feelings about losing their brightest light. This OVA captures a bittersweet moment of transition, balancing the grace of knowing when to let go with the ache of an era ending. It's a character study wrapped in the theatrical spectacle Sakura Wars demands, asking what heroism looks like when the curtain finally falls.