This is my favorite side story imo. 
"a little black exotic monkey came running up to Saitama and Genos, saying Ookye Ookye in the process"
Comment by Nekonyan on Love Is An Illusion - Chapter 109
1 Reply
@Nekonyan mine too
"a little black exotic monkey came running up to Saitama and Genos, saying Ookye Ookye in the process"