[Melodramatic love-triangle chaos + straight male heartthrob adored by everyone + both leads are each other's only partners + no fixed couple + goofy comedy + faked death]
Serious blurb: The quick transmigration journey of Gougou, a System with years of experience at lying low, and Lin Xu, a spirited and youthful beauty.
Not-so-serious blurb: A bizarre duo made up of Garfield, an unreliable, half-castrated relic from the old days, and a not-quite-middle-aged "man" overflowing with chuunibyou energy and inner snark.
[World One]: I Work as a Hidden Guard in the Cold Crow Camp
Lin Xu originally only had to serve as a minor hidden guard in the Crown Prince's presence, occasionally switching identities with the protagonist, Shen Han, and coasting through life.
But then...
The Crown Prince, Xiao Xu, conquers himself. The childhood friend can't beat the newcomer, so the latecomer should come out on top.
Hidden Guard Commander Shen Han: I'm not the damn big brother. I watched over him as he grew up, so he should be mine.
Yan Hui, endlessly piling on secret identities: I don't play low-level games. You amateurs are about to watch me break through the world barrier.
[World Two]: I Become the Captain of the Supernatural
He was supposed to appear as a ghost and be killed by his deputy in the name of righteousness. Instead, he and his old nemesis both fight to seize the authority of Soul Ferryman 07, who brings him back to the mortal world.
[World Three]: Zombie Emperor in the Post-Apocalyptic World
Other worlds to be decided...
P.S. 1. The protagonist really is a goofy straight man. He might eventually catch on.
2. The author loves reading love-triangle chaos, and loves writing it just as much. Everything is set up for the sake of the chaos.