Bry, an adventurer whose status was not growing as expected, left the front lines to do clerical work at the guild. He was supposed to have saved the guild from bankruptcy by cutting unnecessary expenses, but instead, he incurred the wrath of the guild leader and was fired. The former party members also quickly discarded Bry, who was a liability, and the leader, Light, even lost his girlfriend. In the midst of his heartbreak, Bry suddenly awakens a skill called "login bonus. Every day, he receives gifts of various sizes from a mysterious entity. When he is informed that the "first bonus" is located in a remote village, he heads for it, half-convinced, only to find a castle that has appeared overnight! The fate of a good-natured adventurer is now changed by a "login bonus"!