Erito - Rina Kawamura - Best Friend-s Girlfrien... -

Kaito. His best friend. The man who’d lent him rent money when his freelance design gig dried up. The man who’d held his hair back when he’d drunk too much at the office party. And now, the man whose girlfriend was standing barefoot in a thin sweatshirt, offering him a beer.

Instead, he said, “Because you are.”

That was all.

“And yet?” Erito’s voice was a whisper. Erito - Rina Kawamura - Best friend-s girlfrien...

And still, they didn’t stop. The end came not with a dramatic confrontation, but with a forgotten receipt.

“You’re staring,” she said, not looking up from the couch where she was curling her legs beneath her.

They sat in the thick silence of two people who have already said everything safe and are now navigating the minefield of what they shouldn’t . The television murmured a variety show. Neither of them watched it. The man who’d held his hair back when

Erito had laughed then. He wasn’t laughing now. He was watching the way the condensation from her beer dripped down her index finger.

He still dreams of cobalt ink. But now, when he wakes, he doesn’t reach for his phone. He makes coffee. He goes to work. And he tries, every day, to become someone who deserves a story where he is not the villain.

They didn’t stop. Not that night. Not the next week. They became architects of beautiful, terrible lies. Kaito’s late shifts became their stolen hours. “Working late” became code for a love motel in Shinjuku with walls the color of bruised plums. Erito told himself it was passion. Rina told herself it was fate. Neither believed it. “And yet

Kaito turned then, and Erito saw it—the crack in his best friend’s chest, raw and weeping. “Then why ?”

The bridge over the Kaname River still stands. Erito avoids it. Not because it hurts too much, but because he knows exactly where that key fell—and he’s finally learned that some things should stay at the bottom.

“I don’t know,” he said. And that was the real betrayal. Not the kiss. Not the motel. But the fact that he had destroyed a friendship for a reason he couldn’t even name.

“No. You were perfect. That was the problem.”

She touched the spot absently. “It never fully washes off. Occupational hazard.”