Zhong Wang attends the Atlant International Magic Academy. He's a third-rate mage and a first-rate deadpan wisecracker.
Just as he's about to graduate and receive his magic license, the academy springs a final assignment on its students: clear a fantasy world.
To help them complete the task, the academy gives every student a magic book. Everyone else's is a real spellbook, but a tiny winged fairy pops out of Zhong Wang's and forces him into a contract. Overnight, he becomes a world-hopper, traveling between worlds to make sure none of them collapse.
And so, without a diploma, Zhong Wang takes on the task of saving every world. But in each one, he encounters a male lead who looks exactly like his archenemy.
In the first world, the other man is a noble and dignified Elf King, while Zhong Wang is a penniless little mage. Through a muddle of circumstances, he's chosen to become the Elf King's queen. After he's scrubbed clean and sent to the king's bed, the other man doesn't even look at him. Turning away with an elegant air, he says, "I don't like men."
Zhong Wang lets out a long breath. Before he can even climb out of bed, the little fairy appears, grinning as it tells him, "Master, your task in this world is to bear the Elf King a baby."
Zhong Wang: ...So we're starting at S-rank, huh? Did anyone consider that I'm a man?!
In the second world, Zhong Wang is a dragon-slaying hero hired by the king to rescue the princess from a wicked dragon. He rushes to the dragon's cave, but finds no princess. Instead, a newly hatched baby dragon mistakes him for its father. Zhong Wang: Your Majesty, did you lie to me? How did a dragon egg kidnap the princess?
In the third world, he wakes with a black cloth covering his eyes, being carried in a sedan chair. The people outside speak a strange language, but somehow he can understand them.
"Offer this blind man to the mountain god, and the village will get rain!"
Even through the cloth, Zhong Wang can see what's outside. ...I can see, really.
At last, Zhong Wang returns from the other worlds and can finally graduate. But to his surprise, all the powerful figures from those worlds show up at his graduation ceremony!
...Thanks for asking, but maybe I just won't graduate!
[Note] 1. The male lead is a fragmented version of one person.
2. There is no actual male pregnancy.
Theme: Study hard