Yurinas is a deity associated with Boobjobs who resides in the underworld. Despite being revered for his large bust, he feels undervalued due to the lack of effigies made in his likeness. To elevate his status and pursue an intimate relationship with Athena, the renowned goddess known for her massive breasts, Yurinas engages in swordplay with Faron, the god of Death, on a regular basis. One day during their practice session, he stumbles upon a peculiar protuberance embedded in a rock and is subsequently transported to the human world.