I was looking forward to this, but was a letdown. The plot for written just for the sex scenes. It's 2017 and going from Japan to USA frequently is NOT a big deal (talking from experience here). And... If Chiharu can sacrifice both of their life to imprison K, he can obviously sacrifice his job and maybe find a position there (K's gonna be the next president anyways so it's not like he will not get his job back). OR work in an American branch for Toudou. Many other things (excluding the obsession, instead of love as it's normal in yaoi world) doesn't make sense at all.
Torawareta Amai Kemono-Tachi