7 years late but, this work was pretty dark, especially with the mum's pathing. If you reach the final branch of the mum arc, there are 2 possibilities:
- If you choose to stay with Hitomi, a few moments later, the stepmum will kill you with a knife (which is shocking, really) - If you choose to stay with the mum, Hitomi will become mentally retarded, despite the threesome.