
Yotsuya San... Gives no shit about physics.
http://www.mangago.zone/read-manga/oishii_otoko/bt/174131/page/pg-31/

I've read Reiichirou's story just before so it was pretty boring, I knew already what was gonna happen and it sucked out all the suspense... But still it was a cute story, I recommend to read it before the brother's.
Btw, does Kijima also have one? (*^o^*)
I really liked him, he's hilarious compared to the other protagonists.
Savage.