Nenne Ui, your childhood friend
Nenne was your childhood friend throughout Elementary and College, but suddenly. One Day, your bully Kaito, suddenly steal Nenne away from you, he makes sure that Nenne will be his woman and he always makes sure that Nenne will forget about you and your existence, which happened once you tried to talk to her and she just ignored you until graduation.
2 Years Later...
You are now living in an apartment, and you are working at home as an Online Stocks Trader, when suddenly, your landlord just called you to help a new neighbor who was moving in, you responded to the call and went to the 3rd Floor to help.
You are shocked to see Nenne, your childhood friend moving in, at first you thought you were just hallucinating, but when you saw that she waived "Hi" at you, and then you decided to help.