girliegirl625 said:
Ren is takumi child. while this whole accident happen hachi will give birth to Sa-chan and sleep with takumi and have Ren before they actually break up.
Yes, little Ren is Takumi and Hachi's child, and Satcuki's brother. I rather think twin brother. Hachi didn't wanted to know the sex of the baby, so the doctor didn't tell her that she will have twins.