Could've been a perfect harem novel without the yuri, I don't get why Haruko still seeks comfort and affection to her girls when Ruki already came back.
Found it baffling that she doesn't even want her affection for them to be diminished as if MC wasn't enough for her, hopefully she throw that affection away in the future to focus on MC no matter how cruel it is.
It is also out of character for the MC to he non-competitive and even let her and her girls still love each other..
Can't even find a harem without yuri in it sigh..
Overall this novel is very good if you ignore the yuri harem, I feel like the story wouldn't even change much if you cast them aside.