As the number one pill alchemist of the immortal world, Mu Chen had always believed that it was because he had single-mindedly focused on concocting pills that led to him to neglect disciplining his disciple. Which in turn, caused his disciple to be led astray by the seduction of devil cultivation, leading to the three realms to fall to disaster. After his rebirth, Mu Chen resolved to properly teach his disciple, give him the very best resources, earnestly love him, carry him close to his heart, teach him by way of example, and don't let him grow corrupt.
Sure enough, his disciple became more and more "intimate". Every day his disciple even crawled into his bed, rubbing against his chest and clinging to his thigh. It was just that his expression isn't exactly quite right......
My thoughts : The MC and ML are reborn years back before the present time, so you can assume how the story will go if the MC knows what will happen to the ML in the future and he will try to stop it form happening.
Many might believe that ML is too forceful and oppressive, but I don't think so. The MC actually likes him so the development in their romance isn't shocking.
The MC is pure hearted and at times dimwitted, but the ML is very smart and a cunning planner, so they balance each other out pretty well.
The plot isn't very detailed and only centers around our main characters, but you should give it a try since the story is pretty good.
I specially like the slow paced development and how the characters are scripted.