High school debut / Kawahara, Kazune

Haruna starts dating Yoh, a handsome upperclassman who has been coaching her on how to attract guys, but their relationship is filled with awkward dates and plagued by the jealousy of others.

Yoh, a handsome and popular high school upperclassman, agrees to coach tomboyish Haruna into changing her appearance and behavior so she will appeal to guys.

"Friendship and love are put to the test when Yoh's friend Asaoka reveals that he likes Haruna. The two boys strike a deal--whoever loses the school sports meet will give up on her! Later, Haruna grapples with an unattractive girl who's obsessed with Yoh... But can Haruna win against jealousy and sabotage?"--Back cover.

Now that she's in high school, Haruna wants to leave behind her softball glove and find her true love, and she gets Yoh to agree to coach her on what makes girls appealing to guys, but only on the condition that she not fall in love with him.

During the school sports festival, Yoh begins to think that his friend Haruna has feelings for Asaoka, who he is dating and trying to teach about love, and does not know how to react.

Yoh is concerned that a freshman boy has the hots for Haruna, who hasn't even noticed, and worries what Haruna will do when the boy makes his move.

Haruna bears the responsibility of taking care of Yoh when his parents leave town, and it occurs to her that she might take advantage of the opportunity so that the two of them can be alone.

Haruna comes face-to-face with Yoh's ex-girlfriend on the train and is reassured that he does not want to get back together with his ex, but Haruna wonders if those are his true feelings.

When Haruna gets into the ninth grade, she starts finding boys to be more interesting than softball, and just as things are going her way, transfer student Reona Matsuzaka shows up with her vengeful ways and ruins all the fun.

Haruna fears that Yoh is in love with her friend Mami when she spots the two of them together, and, instead of confronting them, Haruna runs away and risks ruining her relationship with Yoh.