Monster Summoner: Dungeon Domination with the Demon King’s Army

Story:

Read Monster Summoner: Dungeon Domination with the Demon King’s Army / 魔物召喚でダンジョン無双　魔王軍と契約した最強冒険者 Yuki, a young man who lost his family in a Dungeon Collapse, suddenly finds himself cornered by the most powerful Dungeon Boss, Libel. Forced into a contract to become a “Monster Tamer,” he gains the ability to form pacts with all kinds of monsters. Now, armed with this incredible power, Yuki must set out to conquer every dungeon—and survive whatever challenges lie within!