The Wage of Angel of Death Is 300 Yen per Hour

"Okay, we'll utilize you as a shinigami." The seasonal work I began doing is to clean up the second thoughts of the departed with my schoolmate who's a stunner. The ones who die from this world with waiting second thoughts are given "lost time." The shinigami's responsibility is to save the departed and resolve their second thoughts however the pay is just 300 yen. What the hero finds in the wake of engaging with different unique "expired" is...