The girl, Misaki Yamamoto, is a neighbour of one of the boys who is named Mamoru. Mamoru's perferted friend Kusuda convinces Misaki to stay and listen to his 'rhymes' who are so bad that she passes out, which is common when Kusuda rhymes. Kusuda then tries to convince Mamoru to take advantage of the situation which he refuses but later starts to doubt.
However, Misaki puts both Mamoru and Kusuda in a wrestler's hold while she sleeps, after which she's calmly sleeping again.