Help please Manga find?

okay so yesterday i was reading this manga but for some reason it didn't pop up in my history, i don't remember the name and the tab was deleted...but it's about so far these 2 boys in school (or school ending) the senpai tells his friend he won't be looking after him anymore (protecting him when he gets in fights) and will be working at his grandfathers shop (restaurant i believe or like small side shop where they serve food) and the grandfather helped a guy/loaned him 30,000 but these loansharky/yakuza guys doubled the debt to 60,000 or something and they ring up demanding food but when he goes to deliver the food they always say sorry next time (the underlings ordered different food) so they are being dicks. but then the main bad loan shark dude says his name and the dude eating the sushi goes huh *name* jumps up and goes senpaiiii, he's my senpai. i got up to where the dude snaps thinking the school friend who he hasn't seen in years joined the loan shark people, punches him but then kouhai dude explains he only has a friend at that office so he goes to visit then asks the senpai to let him work with him...please help XD it's a good story so far and only read 1 and a half of the second chapter XD