Isekai kara Kaettekita Yuusha de Aru Ore ga Kabukichou de Ou ni Naru Hanashi

Yuuji Kuze, the hero who once saved another world, returns to Japan only to find himself without a place to belong—reduced to what society calls a "loser." Preferring to end his life, he wanders into Kabukichou and encounters a peculiar concept café. This café is a special place where girls who are also "otherworld returnees" work. "You should try becoming a hero in this city again," someone tells him, pushing him to stand back up. Thus, Yuuji vows to rise once more! A new adventure begins for the man who once saved an entire world.

(Source: Overlap, translated)