[@Hella Cute] Well, nothing is set in stone so I could change that easily if you'd like. Kiku's siblings are 8 am I correct? So how does 9 years old sound. I was just thinking that keeping her independent would be easier for Takeshi, but managing a little sister at that age doesn't seem too bad.

Plus, this would be the perfect excuse to have our characters interact more often if their younger siblings are close friends.