MC hates ML for not being able to save him from being confined for 16 years. ML knew that the one who came back home was an imposter and succeeded in confining the system and researched on ways to save MC but it was fruitless. What MC viewed on the screen was a fake projection made by the system as ML confessed that during the 16 (17) years he had guarded against the imposter and protected their son.

Lots of trust issues on MC part, while ML just hopes that MC is actually MC else he will kill him. ML can tell MC is MC but he is scared that MC will one day get replaced again.

Both of them are a little insane due to the 16 (17) years of pain, MC being confined and see his (fake projection) son getting hurt and seeing (fake projection) ML cherish the imposter while ML sees the imposter acting strange with MC body and uses his body to seduce people.

ML has always been a little yandere and wanted to lock MC up. After they got into a small conflict about MC job, MC was overtaken by the transmigrator. In fact, MC was already planning to quit his job and go home to coax his husband. But the one who came home was fake MC and ML always blamed himself for being the reason for MC disappearing. He even watched MC make out and f*ck other people hoping that MC would come back to him once he saw that ML had suffered enough. I did wonder if ML would go a little crazy and finally imprison MC but I guess he dares not do anything to MC, apart from the occasional times he went berserk

their son was actually reborn. The genius who was working to free MC with his father grew up pitifully because 1 father was a fake and the other one is uh... suffering. I didnt expect the son to be reborn, kept wishfully thinking past world son would be able to somehow see his father reunite. I guess it eorked out, though a bit differently but I'm glad for this

he refused system's evil enticement and made the system puke blood so many times. He's so cute and funny honestly. I could read more about it

MC could see everything that was happening between ML and the imposter during his 16 years of imprisonment, but later discovered that it was an augmented history.

ML knew that MC had been replaced but was afraid that the imposter was using MC's body and was therefore afraid to hurt the imposter for fear that he might kill MC. In the end, he managed to trap the imposter but thought that he had accidentally killed MC and was riddled with guilt.

Their son managed to perfect a device that could catch rogue systems and became the protector of their world before ascending to a different dimension. @_@??

the little actor ends up with the bad system, but notices inconsistencies with the "story". He is cleaver and is able to convey to the doc and MC he has the system and they help him extract the system. I loved how the actor irritated the system, it provided the only humor in the novel.

The actor and the doc end up married, but the doc never explains how he knew his favorability rating, or how he was able to artificially raise it so high.

they go from absolutely hating each other, as in they want to kill each other, to loving deeply like newlyweds.

MC, ML & their child are reborn though they don't know about the child until the last few chapters.

the ML Kou Li does know that the transmigrator is not the real Bian Yi and he has been trying to find a way to save the og Bian Yi. The process is long tough and sad but nonetheless he somewhat managed to save him with the help of his grown up son. Both of them got another chance in life and they shall get revenge on the stoopid system and transmigrator.

This actually didnt happen.

ML hates MC for not waiting for him to help him escape and dying before ML could save him in past life. While MC hates ML for not recognizing his fake and for letting Guan Xi into the house. They both are hurting and traumatised after the incident and the book can be considered a journey of them letting the past go and learning to trust and love again.

Guan Xi was told that MC ran away from the ML and so he had to replace him. He thought MC was also a transmigrator like him and quickly accepted the role. Only after the park incident does Guan Xi start cheating in this life (This part is only told once so im not fully sure). ML knows but accepts it as he thinks MC will return if ML gets hurts enough. Towards the end of the 16 yrs ML ends up trapping Guan Xi in an island that only MC can escape from (as he believes that guan xi uses MC's body and so he doesnt want to damage it but also doesnt want to allow Guan Xi to live comfortably). MC dies right when the revenge system is formed and finds MC. ML dies and the world restarts.

Guan Xi with no memory of first round is given the plot and told MC was going to run away from the ML. MC will end up trapped in an island in the future by ML. Guan Xi his job is to make MC's personality and life turn good. Guan Xi begins cheating on ML in the first year itself. ML is reborn to the year MC gets replaced.

MC is reborn and escapes with the help of revenge system 1 yr into guan xi replacing him. (He arrives 1 yr later than the ML)

System in 2nd round

It was made by MC's and ML's child. From what I understand there were many systems he tried to make and this one must be the one successful in it. It has shielding and protection function.

It's a bug that can increase levels and energy by eating from different worlds. It wants energy from the MC hating the ML. In the last life it didn't succeed because although MC saw ML being intimate with his fake and not protecting their child (both are fake scenes the system makes up) MC's hate level never reached a 100 as deep down MC still trusted him.