Genkaigoe no Skill wa, Tenseisha ni Shika Atsukaenai - Over Limit Skill Holder

A fantasy adventure about bonds forged with people in a different world. The setting is a world, where everyone has eight skill slots. In these slots people can put skills like "Strengthen Arm ★" and "Fire Magic★★" from skill orbs, abilities which prove extremely useful for survival. The total amount of stars your skills have can never exceed your slots.