Leo Millafoden is an underground golfer and Eve's golf coach for much of her childhood. Through Leo, Eve was able to learn how to use "Bullets", high-energy golf swings. Eventually, Leo left Eve on her own.
It is revealed that Leo also tutored Rose Aleon, Eve's main underground golf handler, but quit being her mentor when Rose continued to get herself further and further into the mob scene
It is revealed in Season 2 that Leo was unbeatable, and only Kazuhiko Amawashi was able to defeat him in a match. Inspired by Kazuhiko's skills as a golfer, Leo made it his goal to combine Kazuhiko's and his skills into one golfer to create the greatest golfer. He found his opportunity upon discovering that Kazuhiko had a surviving daughter named "Eve", and sought her out in the hopes she inherited Kazuhiko's skills so that he could instill his techniques into her to achieve his goal
