Series: Umamusume - Trainer's Bizarre Days (Tegami (kch7683))

Original title: 트레이너의 기묘한 일상 Yes, it's a JoJo reference.
Japanese title: トレーナーの奇妙な日常

Artist: Tegami (kch7683)

Fan manhwa series by Tegami depicting the "bizarre" daily life of an Umamusume Trainer as he deals with the umagirls under his care.

Comic pages are generally oriented Korean webtoon style, i.e. top-to-down and left-to-right, with horizontal speech bubbles.