Danmachi: The Outsider's Familia

Leon Hart woke up in Orario with three magic slots, seven skills, and stats so bad they’d make a goblin laugh. Six months of scraping by as a Level 1 nobody under Demeter’s protection taught him one thing: in a city where gods play politics and Evilus lurks in every shadow, raw power means nothing without people watching your back. When his cheat system drops a Familia Invitation, a black letter that summons warriors from other worlds, everything changes. A holy maiden saved from the stake. A silver-haired healer who shouldn’t exist. A sword saint with no kingdom left to serve. One by one, Leon builds something Orario has never seen before: a familia of outsiders, hidden beneath Demeter’s banner, growing in the shadows while the city’s power brokers look the other way. The Dungeon doesn’t care where you came from. It only cares whether you’re strong enough to survive what comes next. — Description from novelcodex.org