Top 1 Fighting Tutoring is a Manga/Manhwa/Manhua in (English/Raw) language, Martial Arts series, english chapters have been translated and you can read them here.
The bullied loser Kim Jaehyuk receives ‘Top 1 Fighting Tutoring’! Kim Jaehyuk is a high school student who has been living in despair under the torment of bullies. He’s good at studying, but he’d rather be good at fighting. Then, as if by fate, a ‘fighting tutor’ comes into his life!