The Face of the Wicked - Forbidden Hearts, #1

In a dark and dangerous world... Yuli, an assassin, finds himself uncontrollably drawn to Ren Hirokazu, a notorious criminal and murderer. Despite the obedience collar that forces him to carry out orders for the powerful Yakuza organization, Yuli cannot resist the allure of Ren's dangerous charm. He kills for pay, accepting the poison that keeps him delirious as a necessary evil. But when a mysterious discovery leads him to defect and become a hunted traitor, Yuli's world is turned upside down.
Hunted by the Yakuza and other powerful enemies, Yuli has nowhere left to turn until Ren offers him a way out, a chance for freedom.  But at what cost? As they navigate a world filled with danger, secrets, and betrayal, their forbidden love becomes a liability. Will they survive and trust each other enough to make it out alive? Or will their enemies destroy them? Warning: this a dark MM 40k novella romance, gay sci-fi romance, mm cyberpunk romance, mm enemies to lovers romance which includes gore, violence, mentions of sexual abuse, dystopia, short story, novella, mm sci-fi fantasy, mm possessive romance, mm second chance romance with a HEA ending.