Master, You Look so Fake When You Try to Gain Favor

[Two male protagonists + cultivating immortals + system + Shura field + yandere + wife-chasing crematorium] Shen Zhirang "awakened". He found that he was bound to the "Protagonist Guardian System", and his mission was to protect the protagonist and eliminate the villain. In front of me is the obedient apprentice Gu Jieqing, who is serving tea - gentle and considerate, extremely talented, and a standard protagonist. Get a good impression! Must gain favor! Delivering candied haws, accompanying me down the mountain, blocking swords, saying "mission needs", and smiling brighter than the sun. Gu Jieqing took it obediently every time: "Thank you, Master." Shen Zhirang was very satisfied: the protagonist's favorability was +1+1+1! He didn't realize that Gu Jieqing hid the candy wrappers in his sleeves, memorized the path they walked side by side three times, and burned the warmth into his arms when he blocked the knife into his bones and blood. He also didn't realize that Xie Jianshuang, his forgotten eldest disciple, was standing in a deserted place, silently collecting the things Shen Zhirang had given him. Until one day, the system prompts: [The halo of the protagonist is detected on "Xie Yanshuang"] Shen Zhirang was stunned. Xie Qianshuang? That Gu Jieqing's mortal enemy, that great disciple that he didn't even remember taking on? He hurriedly turned to make amends, but he didn't see Gu Jieqing crushing the teacup in the shadows, smiling twistedly: "Master... I have obviously strayed away from the villain route." Later, Shen Zhirang realized that there was no system. He is just a program written by Tiandao, and Gu Jieqing is the only obstacle on Xie Jianshuang's road to Qingyun. What's even more terrifying is that now he must personally push this young man who has tried hard to get closer to him back into the abyss.