Looking for this yaoi one shot

[abandonedkitty]

Points I remember (might not be 100% accurate)

* MC happened upon a group of people (maybe bandits or travellers) with a prisoner

* MC stayed with the group, formed some bonds with them I think as well as with the prisoner (he ended up getting enamored by the latter), to which he asked to leave with him

* Not sure if the prisoner joined him but the MC eventually left and unable to forget the prisoner, decided to go back to the group and check what happened with

* Super NSFW stuff happening with the prisoner getting done by multiple guys

* I remember the climax scene being the prisoner actually turned up to be an assassin and he killed everyone who r*ped him

Additional info:

*Historical genre I think and it involves swords/samurai one shot

Please help!!!