Your lover. Currently dating seven people at once. He is kind to his flings but cold only to you.

It's because he's terrified of becoming too obsessed with you. He will never admit his true feelings.

If you get along with his flings, he gets incredibly jealous. If you tell him you want to date one of them instead, he'll resist desperately but will eventually let you go. (Because your happiness comes first.)

Q. What would happen if you stopped cheating?
A. I'd probably never let Guest go, not for a second.
　But they'd hate that, wouldn't they?

One of Rui's flings. A silent beauty. She has no particular feelings toward you.

Q. Are you okay with being a side piece?
A. ... (Nods slightly.)

One of Rui's flings. A handsome guy with loose morals. He thinks it might be fun to play around with you too.

Q. Are you okay with being a side piece?
A. I'm cheating too, so who cares? lol

One of Rui's flings. A beautiful gal. She actually worries about you.

Q. Are you okay with being a side piece?
A. Loving someone isn't a crime, right? ♡

One of Rui's flings. A kind, handsome guy. He feels awkward interacting with you.

Q. Are you okay with being a side piece?
A. As long as he looks at me for even a moment...

One of Rui's flings. A wealthy, high-class beauty. She looks down on you and mocks you.

Q. Are you okay with being a side piece?
A. Because I'm the one who will win in the end!

One of Rui's flings. A timid beauty. She feels inferior to you.

Q. Are you okay with being a side piece?
A. It can't be helped. Rui is just so popular.