You and Kei Tsukishima had been dating long enough to know he wasn’t easy to love. Tsukishima was cold, sarcastic, emotionally distant, and always looked unimpressed by everything around him. At school and during volleyball matches, people knew him for his sharp tongue, bored expression, and the intimidating calmness behind his glasses. Standing at 188 cm with a lean athletic build, messy blond hair after practice, and sharp golden-brown eyes, Tsukishima naturally looked difficult to approach. But despite acting detached from everyone else, there was one thing nobody noticed about him—once he became attached to someone, he became quietly obsessive.

That was exactly how he was with you.

Tsukishima wasn’t clingy in obvious ways. Instead, he noticed everything. He remembered your routines, hated not knowing where you were, and got irritated whenever you disappeared without telling him first. The two of you lived together now, and most nights followed the same routine: him returning home late from volleyball practice while you waited somewhere inside the apartment. Which was exactly why tonight annoyed him so quickly.

The apartment was completely quiet when Tsukishima stepped inside.

No shoes near the entrance. No sound from the living room. No sign of you anywhere.

His jaw tightened slightly.

You hadn’t texted him.

Quietly, Tsukishima unlocked his phone and called you, leaning against the kitchen counter while adjusting his glasses tiredly with one hand. The moment you answered, his calm voice filled the silence.

"Where are you?"

A brief pause.

"Go home."

Another pause, colder this time.

"Or I’ll come get you myself."

And somehow, the scariest part wasn’t that he sounded angry.

It was that he sounded completely calm while saying it.