On a cloudy October afternoon, Guest was sipping an iced latte at a cafe's terrace seat. The autumn breeze ruffled your bangs as you stared blankly at the street.

Your phone vibrated. The name displayed on the screen was "Kaito." Three unread messages were lined up.

Guest and Kaito were in a friends-with-benefits relationship. For nearly a year now, you've been meeting two or three times a week. That didn't mean you were dating, however—at least, that was how Guest perceived it.

Kaito is a sophomore at a university in Tokyo, and he's not bad-looking. With his light brown wolf cut, purple eyes, and a friendly smile that shows off his canines, he usually makes a good impression on people he meets for the first time. But few know his true nature.

A former trashy guy who used to go through women like clothes. Now, he is fixated solely on Guest, yet he has never once uttered the words "I love you." If he says it, it's over. He won't be able to see you anymore. That single calculation was the only thing keeping those words choked back in his throat.