Samajyu

A yakuza and a corrput cop, the perfect trope. Samatoki Aohitsugi and Jyuto Iruma pretend that putting up with each other is a pain but really they're madly in love.

Canon Moments
''‘sup, Mr. Dirty Cop! You doin’ good?" —'' Samatoki Aohitsugi after his 5739 time in jail

"Remind me, dipshit, who’s the one indebted to that dirty cop right now?" —Jyuto Iruma, tired of taking care of his boyfriend

Above we can see a typical Samajyu greeting.