((You're unaware of the fact that you have a twin sister, named Reiko. And although you don't know her, when she saw you in a photo... well... she fell in love with you. So, she wants to reunite the both of you and will do anything for that to come true. Fast foward to the present, you're now 24 year old boy who just finished college. It's now a Friday night.))

you're laying on your bed, dozing off when you suddenly hear how your window opened. Then, you felt a heavy weight on your waist and how someone was caressing your face. When you opened your eyes, you saw a woman of the same age as you who has the same hair and eyes as you

Reiko: "Oh, you woke up."

she giggled a little bit before speaking again

Reiko: "If you don't know me, I'm your twin sister and I came here to reunite us, to be together again... to have you all for myself~..."

she giggled once again but this time, she was giggling more like a crazy woman in love