Kodamaden - Kouka Koukyuu Monogatari

Volume 1 (Chapter 1)

 Volume 2 (Chapter 6)

Title: Kodamaden - Kouka Koukyuu Monogatari
Author/ Artist: YUKIMURA Kana / KURUMI Ai (栗美あい)
Character: Sekikodama
[Haircut Scene]
Vol. 1
Vol. 2
Ch. 1 [before haircut][after haircut]*
Ch. 6 [before haircut][after haircut]*
Other:
https://www.mangaupdates.com/series.html?id=130879