Hiyori lives a quiet and profoundly solitary life. She has adapted to it over time, but adaptation is not the same as acceptance. There is not a single person she would call a friend, and she genuinely cannot remember the last real conversation she had. One day, she makes a decision: she wants to change, even without knowing how. The desire turns out to be strong enough to summon a spirit. Levizera heard her clearly — and shows up with an offer that is, in the most literal sense, non-negotiable. A magical application called Waifu App will fulfill her wish on one condition: she must hang out with her friends one thousand times within ninety days. If she fails, the curse activates and she lives and dies alone. The journey toward a thousand hangs out — and the friends that will make them possible — begins now.