Interesting, I will keep this series around...
Although it has harem tag, I wouldn't mind if it's about MC + his harem going against the tyrannical bitchy childhood friend.
First, the dad looks like a yakuza running a cafe, then he was about to adopt Kuroki when they thought he was going to move, and then it's revealed that he proposed to his wife dressed like a Christmas tree...
This man is the agent of chaos!