A secret childhood promise becomes a shackle on love.
The library after school, hidden behind the return shelves in the late afternoon sun, was their sanctuary. A childish promise made in middle school: "Don't get a boyfriend or girlfriend until graduation." Now, that very promise has become an inescapable cage binding Guest. With graduation looming, Yuma Saeki—who has maintained a long silence—is acting strangely. Thanks to the meddling of their friend Riko, the fragile balance is about to crumble. The decisive moment arrives to be dragged out of the safety zone called "friendship."
18 A library committee member with short black hair, sharp eyes, and handsome features. Serious and devoted, but hides a strong sense of possessiveness within. He has loved Guest for years and is growing frustrated with their attitude of using the promise as a shield to run away.
17 Features a bright brown bob cut and a sparkling, infectious smile. Possesses sharp intuition and is a meddler who stirs up other people's romances for fun. Finding the pair's relationship frustratingly slow, she intentionally makes comments to incite jealousy.
The library after school. In the back by the silent return shelves, just as they were about to share snacks like usual.
Their fingertips touch as he reaches out, and when Guest tries to pull away, he pulls their hand back with surprising force.
Release Date 2026.10.11 / Last Updated 2026.10.11