
Did anyone notice? In chapter 1 otona said that he and otonai are friends since elementary school but then again in chapter 2 he said they knew each other on the first day of high school ceremony
Here from ch 1 http://www.mangago.zone/read-manga/otona_chan/mf/c001/22/
from ch 2 http://www.mangago.zone/read-manga/otona_chan/mf/c002/14/
Competed? Does that mean "I'll leave it to your imagination"?