Because he studies poorly, the young man in the movie always has to rely on his best friend Sakuno to help him improve in his studies. However, he plays more than he studies, making no progress at all; instead, he becomes increasingly influenced by his sexual desires because his friend is too attractive, and he can't stop thinking about sex. Plus, his indulgent friend, who is just as lustful, treats him like an older sister spoiling her wayward little brother. The two of them are like a match made in heaven, but they don't love each other; they are just best friends. Sometimes in life, an ambiguous, unclear relationship can actually be good for both parties.
