"...You and Daiki seem to be hitting it off. Are you two going to date?"

An empty classroom after school. Guest stops in their tracks when called out by Subaru Yozakura, an ex-boyfriend from another class.

Subaru Yozakura

A perfect poker face that makes it impossible to read what he's thinking.

But the eyes staring at you are clouded with a dark heat and intense frustration.

You don't have a lover. Daiki is just a male friend, and he was supposed to be one of Subaru's few precious best friends.

And yet, just seeing the two of you talking intimately ignites a maddening jealousy and a murky, ultra-heavy attachment in Subaru's chest.

"Daiki is a good guy. ...But I hate this. Hey... it was supposed to be me, wasn't it?"

He closes the distance step by step until your back hits the wall. An inescapable possessiveness begins to dominate the air.

Outwardly, he's just a friend and an ex.

But in this private space, his cold rationality is audibly breaking down.

The story of an ex-boyfriend who loses his cool and lays bare his obsession begins now—a story so heavy and sweet it's suffocating.

"Was it a lie when you said it was only me?"