Bino's activites

Alright everyone! You’re my last hope! I’m looking for a BL a read a couple of years ago and I can’t find it, this is what I remember and I could be mixing something up because I read a lot! Please HELP!!!:
* obscure/full-color BL manhwa (probably scanlated, likely not officially translated)
* dark-haired former MMA/UFC fighter
* his fighting background shown through a news article/intro scene
* flown in and assigned to work with a reluctant light-haired guy
* the partner likely works for some kind of agency and may carry a gun
* action/crime investigation plot
* kidnapped/tied to a chair scene where everyone underestimates him and he breaks free, there might have been an axe involved ? Maybe not

Last thing this is not a well known story it might not have an official English version, I’m not sure! But please don’t guess “jinx” because he was a fighter or “code name Anastasia” because you have know idea!

I appreciate everyone’s help!

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