Ataru and Mendou get locked in the latter's giant safe, where they slowly go mad when the place starts flooding and they try to out-survive each other.
Genres: Animation , Comedy , Drama , Sci-Fi & Fantasy
Keywords: alien , anime , based-on-manga , japanese-high-school , magic , romance , romcom , school-life , shounen , slice-of-life , super-power , tsundere , latest-web-series-online , watch-anime-series-online , tv-shows-online