English publication via Renta!
English publication via Futekiya
English publication via Manga.club

Izumi likes two things: sweets and a boy in another class at his high school, Ibuki. Ibuki marches to the beat of his own drum, which Izumi admires. However, Izumi is approached by Ibuki's twin, Satsuki! His playboy vibe instantly turns Izumi off, but Satsuki is persistent! Flashforward, and Ibuki thinks Satsuki is dating Izumi... That's when it happens... Ibuki hisses, "I hate gays."
Also included is a love story which centers around the two versatile young men, Rio and Etsu, from "Rule Number One".

This volume includes the following stories:

• If You Share A Kiss with Asakawa
  (If I Kiss Him)
  ch1-3 + bonus story

Stories from the "Rule Number One" series

• Morning Call

• The Story of You and Me
  (Let's Talk About...)

• Feeling Prettier than Fireworks
  (Hotter than Fire)

• Please Please Me