12 titles recommended if you like Ahiru no Sora
Run with the Wind
Tsurune
2.43: Seiin High School Boys Volleyball Team
Stars Align
HANEBADO!
School Days
Sound! Euphonium
Hinomaru Sumo
Yu Yu Hakusho
Kono Oto Tomare!: Sounds of Life
Chihayafuru
Say "I Love You."
