I don't know why people hating on this.... Saying Ginga deserve better or Ginga should be with Kou instead going threeways.... They're literally head over heels for Yuu and Yuu give them exactly same treatment(as Ginga said Yuu's ass is invincible). This is supposed to be fun/comedy/smut manga PLEASE dont take it seriously. If you want to read some angst/tragedy/no-comfort then read something else, i'll give you some recomendation.
#-.-)