Hello! I'm just curious to know if theres any kind of manga where the male lead is not hesitant to hit a girl back, for example, girl hits guy for no reason, guy isn't afraid to hit her back

[img]http://orig14.deviantart.net/cb0c/f/2012/171/4/b/gif_by_emoxynha-d549jj5.gif[/img]

Bring it on! it doesn't really show him hitting her, but it was alluded that he would do it no hesitation.

Male lead in Purikyuu hits the girl once or more.
In Gintama, Gintoki sometimes hit/punch Kagura and Sacchan. All for comedic effect tho, similar to the reason usually girls hit guys in manga; person A says dumb things, person B reacts by hitting person A.
Male lead in Tokyo Crazy Paradise slaps the girl for saying something hurtful to him, but they also usually hit each other when fighting (altho this not shown only they both got all bruises and bandages afterward).

DONDAKEE!!

Heart o Uchinomese!

Gekkan Shoujo Nozaki-kun - Kashima and Hori-senpai