Even after the betrayal of itsumi, the MC choose to let her stay in the house but starts to face her with an cold attitude, He would also develop some traumatic experience to a certain part of the house like the bedroom and would even afford to destroy/replace the furniture such as the rocking chair that he share experience with his mother but he continues to destroy it without hesitation as he deem that the memories that he share with his mom has been stain by itsumi. (The MC is a only person living in the house as his parents committed su*cide).

Fuyuki would later quit school as a result of the lack of confidence from what has happen. When itsumi heard about it, she knows that it was all her fault and try to make up to the MC by being a maid or s*ave at his house, helping out with chores and meal to so call make redemption but it only gets worst for her as Fuyuki would replay all the scene of her cheating in the bedroom, she would keep crying and beg the MC to stop but he just simply continue to paint as without emotions. Fuyuki continued to play the video as a material for drawing the best picture.

This was not even the worst parts, she would later learnt that Fuyuki became sick and hospitalized and suddenly disappearing

She would wait outside the house everyday for the MC to return but to no avail. The guy she cheated with would then appear and tell her to leave with

BTW abit talk about the Kiryuu Yuudai, In the past, the MC would look up to him as he possess all the trait a cool guy should have and in the result of the admiration, he would develop a inferiority complex

When he arrive at the house, she was scared that she would redo her mistake and comes up with a plan to mu*der him, she reluctantly agree

A inspired novelist soon witness this and decides to be her friend and help her out?

They would then kidnap him and pour acid on his body, slowly torturing him and filming him in the process to show the video to Fuyuki to show how much she change

But Fuyuki never came back for a long time and she continue to wait as part of her redemption

One day, he came back stepping out of a vehicle but it was with another woman that is his new fiancée

The new fiancée knows her cheating and ask her to leave but then itsumi present her with the video footage of the torture, Fuyuki tells her to move on and enjoy life but she couldn't so she chooses to stay outside everyday while watching the couple head in, making her feel despair but willing to accept as part of her redemption.

I believe she dropped out of school and waited outside everyday with a picture album of them together for around 3 years and her health starts to fallen, by then the MC and the new girl has already gotten married and has a child, She would eventually be forgiven and accepted into the house as she follows them everyday. She has also been scared to love anyone aside from Fuyuki and she eventually would have a baby with the MC but was scared to love him upon knowing that that its a boy and Fuyuki cannot love a boy other than fuyuki so she pass the child to the first wife to take care. She say that she would eventually overcome her dieases

This story would be perfect with the ex go su*cide instead in the end or just redeem herself and wallow with regret while the guy is recovering and have a happy family without her. I would be fine if they just forgave her but still have reservations on treating her... She's the main reason the guy even has traumatic experience and would actually be borderline mental. No one cares if she killed the guy she cheated on and torture him... It's her fault that he suffered and no one else.

But hell nah, the wife have to sacrifice for a who*e who opens her legs for others and thinks that it's enough suffering for her... Heck, it's much better that after she got hospitalized in despair is that she should just leave them be and have their own happiness...

That cheater girl should take a hint and not destroy a family that guy and wife got after her cheating sh*t got exposed. Oh well, she got serious mental problems and should just be put to mental asylum for being a nuisance in the neighborhood... The wife doesn't deserve to take care of a cheater like her even if she wanted to repent... much less to enter her husband's abode and have a child with him.