Hazure Skill "Level Up" no Sei de Party wo Tsuihou Sareta Shounen wa, Level wo Agete Butsuri de Naguru

At the age of 15, everyone is gifted with a talent - "skills." Chamber was a member of Akatsuki, a party made up entirely of young members that had distinguished itself in the city, but he was expelled from Akatsuki after obtaining a mysterious skill called "Level Up," whose effects are unclear...!