He spoke without a hitch, the idea of 'taking the opportunity to beat up Mo Tan' had been sprouting since his elementary school days. When Mo Tan previously told Rin Winter that he wanted to come to the arena for a casual bout and insisted on not pulling any punches, Rin Winter was genuinely over the moon.
As Mo Tan's best friend A, Winter or, um, our little I sometimes could guess what the other one was thinking. He knew very well that the reason the other person was looking to 'spar' was to prepare for a fight against SUN. That hacker in the game named Double Leaf was a wipe out moment away from storming into the Top 20 of the personal rankings!
[If it's a head-on battle, Mo Tan would probably bite the dust before even touching the girl's clothes, so he must have sought me out for practice because I've become significantly stronger recently, hmhm...]