Dual male leads.
The seme protagonist is somewhat yandere and obsessive.
Su Yu has just finished N worlds as a quick transmigration traveler when his longtime partner, the System, informs him that every target he romanced was a fragment of the Supreme God. Now their corruption levels have shot up to 100, and he has to win them over all over again!
First, a yandere king from a Western fantasy world locks him in a dragon tower in his baby-dragon form, stroking his scales and touching his horns. Then all sorts of powerful figures try to cage him like a canary.
As the System leaves Su Yu scrambling, he uses his sweet charm to soothe the Supreme God's fragments and their depression and obsession. What he doesn't know is that he has already become the Supreme God's one and only obsession.