[ConcernedCitizen]

yosuga no sora dude fvcks his sister

I somehow skimmed over this.

Haruka Kasugano (春日野 悠, Kasugano Haruka)
Voiced by: Hiro Shimono (anime, teenager), Megumi Matsumoto (anime, child)
- The protagonist of the series, with a gentle appearance and slim profile, Haruka in many ways is the spitting image of his twin sister, Sora. Personable and honest, he forges lasting friendships with remarkable ease. Haruka copes with the loss of his parents with a stout heart, burdened with the knowledge that the future of his delicate sister depends on him

So weird. Definitely going to avoid that one. (Also apparently the sequel)