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Another crazy Idea from me........But I want it....

(Y/N)(L/N) is a person who love a game, but his parents did not like the hobby he had. Until he promised that he would prove to his parents that what he likes is actually not a bad thing at all. His parents once invited (Y/N) to a music competition since he was young so (Y/N) could be interested and forget about the game but (Y/N) wasn't interested at all. He just interested in a Tournament that had been held in the game he liked and made this a proof to his parents.

Can (Y/N) prove to them that what he did was not in vain?