Kyoukai no kanata Akihito transform and fight him friends

Beyond the Boundary (TV Series 2013–2014) - IMDb

List of Beyond the Boundary episodes - Wikipedia

Movie】Beyond the Boundary-I'LL BE HERE- Past (Trailer)【English subtitles】

Akihito Kanbara, Kyoukai no Kanata Wiki

Anime Highlights - Kyoukai no kanata: I'll be there (Movie Sequel) ending scene

Over My Head - Kyoukai no Kanata Movie 2: I'll Be Here - Mirai-hen ~ AMV「Anime MV」

Kyoukai no Kanata Movie 1: I'll Be Here - Kako-hen

Kyoukai no kanata Akihito saves Sakura

Beyond the Boundary: Movie - I'll Be Here (DVD) - Taichi Ishidate & Kyoto Animation

it has to be you