One day the timid Toomi Yuna met two ghosts on the roof during lunch. The two kindred spirits died with unrequited feelings in their hearts, met, and fell in love. They ardently wish to experience their 'first time' together before their eternal rest. They enlist Yuna to help them create more yuri couples at the school so that they can glean some insight.

Amber wanders the American Midwest in an inherited motorhome, mourning the loss of her grandfather. It's not until she meets a hitchhiker that things start to look up.

Iris learns that her younger sister is transferring to her school, and will be living with her for the rest of the semester. Even though she has never met her sister before, Iris is determined to make up for lost time by becoming friends, and more importantly, to show off her dependable nature as the older sister of the household.

A woman with eyes of jade stands before You, informing You that You are the Master of the house, and she Your Maid. However, You have no memories, no concept of self, or indeed, any certainty that You are even alive.