ComradeAnt's manga / #Interesting(3)

They were experimented on at this prison and blonde boy had never experience kindness until dark hair boy. And an irrevocable attachment is formed. They are separated and reunite later in life but dark hair boy does have his memory. A lot of mystery and intrigue. No smut.

Confusing but they grew up together and were in the same mafia group until the snake tatoo guy left for another one and there was betrayal but they loved each h other but never said it out loud. Multiple murder attempts but all half passed.