Mobu kara Hajimaru Tansaku Eiyuutan

Synopsis:

Takagi Kaito, a low-status high schooler and classic “mob” character, spends his days as a regular dungeon explorer in Japan, hunting slimes for pocket money while quietly admiring his childhood friend the school’s queen from afar. Then, one day, a rare golden slime appears out of nowhere. After defeating it, Kaito obtains an incredibly valuable drop: a servant card that summons mythical beings! When he finally decides to use it, a stunning warrior maiden materializes before him. It’s time for Kaito to rise above his ordinary explorer life and step into a new world of adventure. Thus begins a modern battle fantasy like no other!