Sorry, but I'm Not Into Yuri

Sorry, but I'm Not Into Yuri; Warui ga Watashi wa Yuri ja Nai; 悪いが私は百合じゃない; 虽然很抱歉但我不是百合; Warui ga Watashi wa Yuri ja nai; 雖然很抱歉但我不是百合; Suīrán hěn bàoqiàn dàn wǒ bùshì bǎihé

In an attempt to win her homeroom teacher's heart, Itsumi Toudou purchased a shady love potion, and tested it out on her stuck-up student committee president, Yomotsuka. Now, she has an uncharacteristically affectionate girl to deal with, and she's not even a lesbian! Right?