CREATURE!

Tachikawa, Tokyo. Akira Takashiro is a normal high school student who is devoted to playing basketball. In the early afternoon on a day that should have gone like any other, a gigantic earthquake suddenly strikes the city. There in the school rubble, Akira witnesses a mountain of dead bodies...and an unknown creature that eats them. The tale that unravels is one that will overpower and shock you!! Get ready for an excellent urban monster attack! (Source: Akita Publishing) — Description from AniList community (anilist.co).