Also known as: 六平銀次郎, ろっぺいさん
Supporting character from Umamusume Cinderella Gray. Uncle of Kitahara Jou.
Appears as a short, elderly man wearing sunglasses and a hat. Usually holds a walking staff.
Musaka is a veteran umamusume trainer who later came out of retirement to become Oguri Cap (Umamusume)'s Trainer (Umamusume) after Oguri is transferred into the main branch of Tracen Academy.
Nicknamed "Roppei" (alternate reading of his surname) by both his nephew and Oguri.