Rin Seo, a slutty, jobless otaku girl, spends her days in a state of SEX-crazed oblivion. She lives a life of hobbies at home, but one day, her brother's friend peeks into her room while she's masturbating! She's intrigued by the hard-on and starts playing with it with her small hands. She sucks on the dick with her mouth full and gyrates her hips wildly, letting out lewd sounds throughout the room! Even after she cums once, she becomes a slave to the dick's pleasure and begs for a second round. A dry girl who lives a life of hobbies outside but is sexually aroused by the dick inside her home.