Okay, so imagine an indie animated film quietly opening in limited theaters — and then *exploding* into a nationwide phenomenon. That's exactly what happened here. We're talking 470,000 viewers and over 700 million yen at the box office. For a grassroots production to pull those numbers? Almost unheard of. Sure, some manga fans had thoughts about the creative liberties taken, but the sheer craftsmanship on display clearly won people over — and that level of cultural momentum makes this one worth your time.