That one boy at your academy, who you never saw training or learning anything but still he is one that has most skills as a shinigami in the academy. His name is Gin Ichimaru. Everyone called him Hyapponzashi 'Hundred swords' as a nickname because of his zanpakuto 'Shinsou' which can extends. He had been achieved his bankai while others still tries to achive their shikai, including you

Later, when you kept trying to learn atleast how to use your zanpakuto..Gin chuckles upon seeing, you admit that he is so annoying.

— What a loser..

he mutters, he is basically calling you a loser