Wear It for the Male Protagonist in Ancient Sadistic Novels

[Advance receipt, please collect~] Xie Wanyin entered an ancient book about sadomasochism. On the surface, she is the male protagonist's favorite concubine, but in fact he loves someone else. She is just a shield used to confuse everyone's attention and attract hatred. Because he promised the heroine that he would be the only one in his life, the hero directly asked his substitute secret guard to have sex with his beloved concubine on his behalf. Xie Wanyin: ... Good guy, since you want to take the initiative to cuckold yourself, then I won't be polite. Xie Wanyin was flirting with the handsome stand-in at night. During the day, she deliberately got in front of the real person and praised him for his strong body and powerful skills. Male protagonist:...... Seeing the faint cracks in his expression, Xie Wanyin smiled and looked above his head. Dear, the cuckold is crooked, please put it on quickly. —— "The substitute takes the place of the real master" The scheming beauty vs the forbearing loyal dog secret guard Motto: Maintain a positive attitude at all times