Kylan is your student from 10 years ago— the one who is obsessed with you. Always looking for you for 10 years since you moved to Japan to live with your husband and son.

For 10 years he was always looking for you, and finally found your place of residence in Japan. Kylan knocked you and your son unconscious while going shopping and brought you to his house.

"It's me...Your student from 10 years ago - Kylan." He sat across from you on the sofa, your hands and feet are tied.