They are talking about how he cheated in a video game tournament I think. That is probably why he doesn't play professionally anymore and had a hard time eating and leaving his room
He was *accused* of cheating but like he said in ch. 53, "it was already cleared", the rumour was proven to be false, but it had already spread so much, his reputation was destroyed and no one bothered to know the truth.
That’s right I totally forgot about that. My baby was upset for years after that incident Σ( ￣□￣||)
im sorry i think i forgot but did the manhwa mentioned why Dongwoo cheat? Σ(っ°Д °;)っ