How Can You Be Pure! summary:
One day, Seojin, a judo instructor meets Jaeha, a former member of the national team, who came in as a temporary instructor. Unlike Seojin, who is quiet, he feels awkward about Jaeha's blunt personality. On the way home, Jaeha ran into Seojin and both had a drink. When a drunk Seojin opened his eyes, he saw Jaeha masturbating while calling his name.+