Miyuki Sakura (佐倉深雪） is one of Suguru's childhood friends. She helps her parents run a public bath house. Acting like a tomboy most of the time, she has some attraction to Suguru.
Miyuki often acts as a tomboy unlike the other members of Triomatic. She is, however, just as loyal to Suguru as the others and seems to have some sort of attraction with him.