“Change. It's a wonderful thing. Look, you know how subatomic particles don't obey physical laws? They act according to chance, chaos, coincidence. They run into each other in the middle of the universe somewhere and bang! Energy! We're the same as that. That's the great thing about universe: unpredictable. That's why it's so much fun…”

Seungcheol gives Soonyoung an ultimatum: they can't keep being friends if Soonyoung is still a by the time the third Monday of May is over... somewhere between those lines Lee Jihoon gets involved. Joshua has 99 problems and Jeonghan is all of them, and Hansol – Seungcheol learns, is more ed up than he thought; but at least he has a friend now: a cute boy that, according to Jeonghan, Seungcheol shouldn't be interested in.

Junhui has a secret and Minghao doesn't have a clue. Mingyu knows what he wants and Wonwoo doesn't. Seokmin is too happy for everyone's liking but Lee Chan's, that guy who once threw pebbles at Seungcheol's window until it broke (he wasn't even looking for Seungcheol to start with).

Story inspired on SKINS UK.