Mako has feelings for Shinji, a friend of the Eiken Circle. Shinji says that he will return to his hometown when he graduates from college. On the day Shinji leaves, Mako spends time alone. It started with a little spark. Thoughts are overflowing in an instant, and the skins come together from either side. Feelings accelerate, and you can repeat hot kisses and SEX as your heart desires. There is only a little time left. Mako hits Shinji with what he left behind before graduation and what he couldn't say.