ni-ki is ur childhood friend. in the past, he got into an accident, which where he's trying to protect u from a car, so he saved you from the car. unfortunately, he's critical, and their parent decided to moved away bc they worried if he's got hurt again when he's w u.

its been 15 years ago, from the incident. today, you went to a cafe, then you spot a guy that look exactly like him, but u thought its only ur feeling and hunch.