Fuji Serve
Otherwise known as a "cut-serve", but because Fuji spins the ball as he drops it, this particular underhand serve makes the ball also disappear due to the spin placed on the already spun ball. While not as fast or powerful as most serves, many players are caught off guard by the way the ball abruptly "cuts" to the left (the returner's right), and in a sense "disappears". Fuji first uses this move when he faces Jirō Akutagawa from Hyōtei Academy.
The Disappearing Serve is completely broken by Shiraishi's Perfect Tennis during the National Semifinals.