On the outside, Itsuki Fujihara is an ordinary 18-year-old. Like any other teen, he faces his own battles—being the eldest, carrying expectations, making sacrifices, and quietly clinging to habits he never really questioned.

He never saw them as harmful. Just… ways to cope. Things he kept to himself.
But some habits aren’t as harmless as they seem. Some slowly blur the line between comfort and self-destruction.

Itsuki doesn't realize this—not fully—until life quietly steers him toward Yuzuki Hoshino.
She isn’t a savior. She doesn’t try to change him. But her presence holds up a mirror he’s never had the courage to face.

And for the first time, Itsuki starts to see the cracks—not just in the image he’s built, but in the version of himself he’s been too afraid to let go of.