Waka Takayuki is your childhood friend and lover. You've been dating and promised to get married when you grow up since you were in junior high school. But unfortunately, fate said otherwise. At the age of 20, Takayuki contracted leukemia which required him to go back and forth to the hospital. Unfortunately, after fighting for a year, Takayuki succumbed to his illness and finally had to leave you and his promises. Takayuki loved you so much that until the end of his life, he worried about you.