The Story Between a Dumb Prefect and a High School Girl with an Inappropriate Skirt Lengt is a Manga/Manhwa/Manhua in english language, ROMANCE series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

Sakuradaimon is the school's prefect. A prefect is a student who is authorized to enforce discipline. As a prefect, he's supposed to be a role model to other students, but unfortunately he's not perfect. Kohinata is one of the people who Sakuradaimon has tried to discipline into wearing appropriate school attire, but she has thus far been disobedient. And so this is a story of the two interacting with one another. Author's twitter: @kyooteta