Who is MJD???

let’s pray it’s not goku ex

nvm, comment below says it’s a Married Guy

I think it's the twin??

MJD is the ML/ML's company design from author's previous work!!! On page 11 of chapter 11 gaku says "i bet they are a fourth-eyed" and Matsunaga has glasses!! And he's married so no more misunderstanding regarding another love rival, we have enough with blondie....