I only have this one quote from it:
“These… are not tears. These are pre-cum of the heart”
“Who says something like that”
This probably won’t be it but its the first thing that came to mind when I read that
https://www.mangago.zone/read-manga/happy_shitty_life/
I remember reading this one smut manga that had two brothers and a sister (i think) and one of the brothers was really obsessed with mayo while the other really liked ketchup. Want to traumatize a friend ^^
is it this idk i didnt read it i just saw it on a list
https://www.mangago.zone/read-manga/koisuru_ketshup_oniichan_tachi_ni_nerawaretemasu/
Yes tysm !! ヾ(☆▽☆)