Kashita Maryoku wa "Ribobarai" de Kyousei Choushuu - Youzumi to Party Tsuihousareta Ore wa, Kawaii Support Yousei to Issho ni Toritateta Maryoku wo Unyou shite Saikyou wo Mezasu.

Rent is a member of the young and influential party "Sword of the Dead Sky." He has been supporting the other members by lending them magical power using his unique gift, the Magical Warehouse. However, while the other members have grown rapidly, his growth has been left behind. Treated as a burden by his comrades, Rent is cruelly expelled from the party. Rent is outraged at this treatment that tramples on his dedication. His anger has caused his gift to evolve into the Magical Warehouse of Infinity. Guided by the support fairy MP who appears at the same time, Rent decides to collect the magical power he has lent to the party members up until now!