Although Koharu is a little taller than the average person, she's a 15 year old girl who lives a much simpler life than the average person. Having no experience with love, she thought she'd spend her days peacefully with her group of ordinary friends. However, a destined encounter will change Koharu…!! * Volume 3 contains the side story "Kota x Haru" (コタ×ハル). * Volume 5 contains the side story "Kota x Haru: Hatsukoi High Jumper" (コタ×ハル～初恋ハイジャンパー～).