Marge Siu, who possesses the unique skill [Skill Lender], has contributed to an S-class party for many years by acquiring accurate skills and lending them to his party members. However, as Marge cannot fight on his own, his party treated him as a burden and banished him to the deepest part of the dungeon. “Are you sure? If I am gone, then all of your skills will–” “Having an incompetent like you is a liability. We’ll replace you with a first-rate guy, so just disappear.” “……I see.” It can’t be helped. I’ll take back the skills I lent to you guys, but…the interest rate is 10% every 10 days. [Repayment processing started…completed. Skill points will begin to be collected at a rate of 116,144,339,696%] The set of skills that was squeezed out of his former companions were returned to him at an ultra-high level. Marge conquers the S-class dungeon solo and begins a path of reversal and counterattack with the help of those who have watched his efforts up until now. This is a story about a man who acquired many skills through hard work, and how he regains everything that was stolen from him and finds happiness.