Mai Arisu's room, a hangout spot for popular girls, is where this otaku girl student spends her time. Today, only the cutest girl among them, Kiyoaka Igarashi, is there. Mai Arisu, a lesbian, can't help but stare at Kiyoaka's exposed panties while she's reading manga, her innocent pussy piquing her interest. Seizing the opportunity, Mai discovers a hidden lesbian manga. Kiyoaka teases Mai's fetish, letting her observe her panties up close. However, Mai, unable to contain herself any longer, pulls down Kiyoaka's panties and starts teasing her small pussy with her tongue...