World Trigger Episode 31: Osamu Mikumo`s Determination
Episode 31 of 73 of World Trigger, aired May 23, 2015, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Hyrein's attack turns Chika into a cube. Osamu blames himself, but is inspired by his fellow Border agents to race for Border HQ in an attempt to save Chika