Can a junior high jock turn high school sweetheart overnight? When Haruna hits ninth grade suddenly boys seem much more interesting than softball! Will Haruna’s high school debut end up in heartbreak hotel?

With Yoh's parents out of town, it's up to Haruna to take care of Yoh when he becomes sick. No parents around, huh? Hmm... But Haruna wouldn't dream of taking advantage of this convenient situation...or would she?

Back in junior high, Haruna Nagashima was only interested in two things: softball and manga. Now that she's starting high schook, Haruna's focus has changed--she wants to snag a boyfriend and have the romance of her dreams!