A story about an energetic girl and tendency boy!
(Source: Chibi Manga)

From Sweet Melody Scans:
Kae, who can’t seem to be as honest as she’d like to be, and Hiroto, self-conscious about his (lack of) height and childish appearance, are known for bickering all the time. Kae has kept her crush secret from Hiroto, but when he returns from summer vacation a tall and handsome flower boy… will she finally be honest about how she feels?

Natsuki, an otaku high-school girl who'd much rather spend her money on manga than pretty dresses, accidentally injures a creepy-looking mangaka Kiritani Taichi. To repay him, she agrees to be his character model until he fully heals. Kiritani-san turns out to be popular shoujo mangaka Ichijou Kiriko, who is also Natsuki's favourite author! What will become of these two?
(Source: Dazzling Scans)