One day, old man Yamada, who lost his wife and was living alone, discovers a flyer for a sexual enhancement drug. I immediately ordered it and tried it, and the cock that was useless for a long time became a binge! Misunderstanding that he has become invincible, the old man summons the courage to call Deriheru, but ERIKA, who comes there with a dazzling glow, instantly captures the old man's heart.
