- Gakkou e Ikou
- Haru Kiyo
- Koharu-chan and Kiyosiro
- Kota x Haru
- Kota x Haru: Hatsukoi High Jumper
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～).
- Volume 0/9
- Chapter 0/36