hello, just saw that someone is looking for a yakuza/mafia manga, and it reminded me of this one manga that i saw before. i've never actually read it, but i read the summary before here on MU. anyway, the summary goes:
two people fell in love with each other, but apparently, they are both son/daughter of two yakuza bosses warring against each other.
if i remember correctly, the cover for it was both the guy and the girl's faces...just looking blank...

this has been bothering me for a while now, but i just never got to it to search.
edit: also, i think it was a MANHUA.

edit2: i'd just like to add that if i WAS right about it being a MANHUA, then i think it was a mafia, not yakuza. >_<!

I still don't have one, shoot.

Neck and Neck? it doesn't have the title page you mentioned though. It's a mamhwa

btw. if the book is manhua, then it's be Triad, not Mafia.
Mafia is Italy (although that usage has gone global now...)
in this case, since it's Manhwa, it's Jopok. (although barely anybody except korean know this)

though it's not that one, i'll give that a try. thanks 🤣
and i'm pretty sure it was a mafia...Chinese mafia? o_O

I still don't have one, shoot.

Elio and Yvette?

Although the cover doesn't match your description, I think this might come close:

Gokusen

Quote from Xinner

Elio and Yvette?

oh wow, i'm sorry for giving wrong descriptions.
so it's a MANHWA, huh?
well, anyway yes, it's elio and yvette
thank you to those who helped.

I still don't have one, shoot.