Ogawa Mezame is familiar with a game that mirrors this world. He was living a lavish lifestyle, making full use of his knowledge, when one day he encountered a young girl. He recognized the runaway girl as one of the heroines from a certain game. Apparently, she wasn't chosen by the protagonist and became a failed heroine. He took her in on certain conditions, and their shared life began.

Their enjoyable days continued, filled with shopping trips, school days, bowling, and more, until a man arrived, claiming to retrieve the heroine... After resolving that problem, the main heroine also becomes a failed heroine due to the protagonist's infidelity? What's more, could the sister of the girl the protagonist fell for possess a hidden talent? After taking in the failed heroines, Mezame's lonely days came to an end. With the failed heroines and an entity that transcends the game, a story begins, charting a course beyond the ending.