After I Had My Brain Replaced, the Brain Owner's Brother Came to Me.

[Two male protagonists/double cleanliness/redemption/mutual favor/1v1] [Yan Xing (Attack): S-level mental power × brain-transplant surgery survivor, decisive in killing in front of others, but only showing dependence on his doctor and friends behind the scenes. Song Fu (Shou): Genius Doctor × Gentle and healing on the surface, but actually fragile and insecure inside] After a top-secret brain replacement surgery, Yan Xing woke up from a coma and possessed terrifying S-level mental power. The military "winned" him into the army, treating him as a special weapon and a potential danger. The person who knew the whole truth about the operation was his rehabilitation doctor Song Fu. The military asked Song Fu to place him under their custody. Because of love, Song Fu chose to stand beside this man whose identity was a mystery and whose power was dangerous. The conspiracy of the Honglian organization has surfaced, black medicine is rampant, and the border is in crisis. Yan Xing was invincible on the battlefield, but his mental power was on the verge of losing control. Only Song Fu's breath could give him a moment of peace. Late at night, the golden-eyed officer buried his fragile neck in the doctor's arms and murmured hoarsely: "Don't leave me." Song Fu was shocked to realize that what he picked up was not only an experimental subject that needed supervision, but also a ferocious beast that only withdrew its claws towards him.