Hayate and Choko twins, which are also different as day and night. Choco acts as a superficial princess whose main problems is its appearance and cute things, while Hayat cool, but an overly protecting brother with a tendency to sabotage potential relations chocco. Naturally, Hayate plans to act accordingly, when Chouko confesses with the school prince Tsukiyono (although, mostly because of his appearance). Everything becomes more difficult when after discussing the love life choco Hayte and Chooc in the end Not enough. Find out what they changed the body. Worse, and, to the horror choco, Tsukiono begins to fall in love with Hayte, which is now in the body of choco.