The second is adorable. If it went on, that would be fantastic.
Kanata should have considered the females' feelings before dating them. Hozumi is fine because he declined them and apologized to the short-haired girl for hurting her feelings.
It is, after all, fiction. However, let us not think in the same way as Kanata. It will be disastrous.
Regarding the first story, I have nothing to say.
Miraiken de Ai o Tsumugeba