Sk8 the infinity x male reader

After Reki and Adam's race Langa, Reki, Miya, Karou, Kojiro, and Hiromi decided to take a vacation to the hot springs. As the group aside from Hiromi were skating to the beach, they saw a boy skateboarding and doing some tricks that looked awfully familiar almost as if it was Adam's tricks but this boy was smaller than Adam who could this boy be, he is (m/n) known as crumble at s but will this group realize it's crumble? will they find out (m/n) knows about s? most likely right because he is doing Adam's tricks or can this boy gaslight them?