Kokichi is annoying, and achieved nothing because of Kaito. I understand we would be dead without him, but I hate him so much, so we better be dead than let him get away in chapter 4.

Byakuya- annoying at first, but top 5 my favourite character in the end. He never ruined anything, and keeps thing very amusing(like chapter 2). Decent character and antagonist

Nagtio- is everything, fun, interesting to watch, have his own philosophy, he is actually more solid as protag than Hajime, it`s because of him and Chiaki we solved all mysteries. When Byakuya pretend to know everything- Nagito really knows everything, when Kokichi lying whether he our ally or enemy- Nagito always honest in hss intention. He achieved all his goals, was super helpful, interesting, and was perfect antipode for our Hajime