Ootaki Arata

A lively friend of Itsuki. They play retro games together. He often shares his self-styled theories on love, but they are all useless, leading those around him to call him a regrettable handsome man.

Spoiler

Despite being mentally exhausted due to constant family discord and his mother being coerced into a "family", he continues his friendships with Itsuki and Nene without showing it outwardly.