yes
Pls give me spoiler . Does he hate him or what bc he gets compare to uke a lot?
from all rhat ive read up to ch 20, yohan is actually obsessed with kang jun. he fell in love at first sight in their first year and approached jun in their second year. the reason for the cockroach on the letter was because taesan was the person who wrote the letter to congratulate jun and yohan told taesan that taesan's place was a cockroach. (yohan didnt like other people paying attention to jun bc then jun wouldnt pay attention to yohan) to send a message to taesan, yohan put the cockroach on the note.
Oh danggg now that makes sense I was like y is he acting a elementary kid who loves to bully his crush thx
is it yohan who put the cockroach in jun's locker and the one who took a pic when jun was getting beaten up in his house?