Is a pure shit show. Yuzu character development is great, shes the coolest one despite all of them having a terrible past. Madoka would achieve the all out breakthrough if she didnt come back after the divorce and commit adultery with such an evil ulterior motive. While koharu... I dont know anymore, author really build her character as a pure dumb person but emphatically strong in order to keep the family together just like that typical lead shoujo manga girl. And lastly for ryuu, he is just a complete asshole, fucking mental and stupid at it best for wrecking his own life and his wives. He should have won the most useless character ever. His character develops only because he was pressured by his wives to start playing piano again and because of financial stuff thing. The author is a bitch for not letting koharu to have her moment/story longer compared to the other two. When the two other wives decided to divorce, it will be followed up with their backstory on how they met with ryuu etc, but koharu ones was just a series of flashback of her emotions and ended just like that. What a dick move. All in all, just dont waste your time and emotion reading this dog pig shit story.
Hare-kon