Uchi no Yuusha-chan Tachi ga Level 99 ni Natte mo Shoshinsha no Yakata wo Sotsugyou Shinai Ken Nitsuite

A group of four young female adventurers—Mina, Yuliere, Lily, and Shano—remain in the novice's house despite their aspirations to become legendary heroes. They repeatedly attempt and fail their graduation quests, encountering various obstacles along the way. Unaware of their progress, their repeated efforts at these basic challenges have granted them an immense amount of experience. Eventually, they reach level 99, the highest possible rank. The story follows these four novices who, despite their low status, have achieved the maximum level through persistent, though unsuccessful, attempts at beginner quests.