Kanami's dad owes 300 million yen and has given her two options: either sell herself to the sex industry or pay off his debt. Despite wanting a normal life, Kanami reluctantly chooses the former but decides to explore life first, including losing her virginity. She accidentally discovers Ryuuno being intimate with someone in the restroom, and they meet again at a party where they drink and end up sleeping together. The next day, Kanami finds out that Ryuuno is seriously injured and worries that she unwittingly caused it and has undiscovered abilities.