I did not like the father having a relationship with ayako （￣へ￣）sorry

There wasn't much of an age gap. If that was your issue. Lol. Kou was very young when Takara was born.

Same here. And i don't know why i still don't like it even though i've been reading for more than 10 times ╮(￣▽￣)╭

Same. I saw it as an attempt of the author to keep both characters relevant to the story.