Karin, who recently had a first date with her new boyfriend, decided to take an affordable makeup class to make herself look cute. There, she met a beauty advisor named Himawari. Karin couldn't help but look at the tall, beautiful Himawari with envy. The makeup class began, but Himawari's unusually closeness made Karin's heart race. She even suggested that since they were girls, it was okay to be so close, and then offered to practice kissing…?