Hayate and Maria get stuck inside the school's clock tower elevator where Hayate realizes Maria is disguising herself. Nagi calls Maria on her cellphone due to her clumsiness with making tea, and Maria goes back to the mansion. Hinagiku and Hayate go to the supermarket and talk with each other, and also make dinner for each other. Hinagiku asks Hayate if he has a girlfriend, but he says he does not. Hinagiku goes to a supermarket and meets Ayumu who is eating baked yams. Hinagiku talks to Ayumu about what happened during Valentine's Day, and if she has a relationship with Hayate. Hinagiku sees a little kitten, and decides to take it back home. Hina feeds the kitten milk, but Hayate says they cannot sleep because they need to take care of the kitten. Maria asks if Nagi wants Hayate to come back to the mansion the next day, and she says she does.
行き場のないハヤテは、ヒナギクの家に転がり込んだ。一方、ハヤテの行方を心配したマリアは変装して白皇学院に潜入する。まさかマリアが“こんな格好”で学院に来ているとは思ってもみないハヤテは、変装マリアを別人と認識。だが、そんな時にエレベーターが止ってしまい、ハヤテとマリアは密室空間に閉じ込められて…。
