Normal City is set in the far future where mankind exists on other planets. The existence of ESPs is accepted- but only as a "tool" for the army.

The main character's name, "Kitty 101", was given to her by a scientist named Troll. Kitty 101 was biologically created by combining several strings of DNA with man-made DNA. She was also given an XY chromosome which turns her into a male on a regular basis.

When she was a baby, Kitty 101 was stolen by one of Troll's scientists, Jason Haven, who wanted to save her from the experiments. He named her Mars Haven and brought her up as his own daughter because she reminded him of his lost daughter.

Time passes, and Troll proceeds with his experiments on the ESPs under his disposal.

From Tokyopop:
After an imprisonment of five days in Heaven, which equals five years on Earth, Soma is sent to the human world to recover the lost sword. Under the supervision of the heavenly princess Aroomee, Soma must deal with the chaos that his deeds have produced.

From ADV:
A threat has been made against young Prince Deporojue of Aden. Sent away for his own protection, he soon discovers the culprit is none other than the dangerously ambitious King himself. A stepfather and enemy to the Prince, this usurper looks to secure a permanent position on the throne by killing his stepson. But with the help of his late father's friends, the Prince fights for his rightful throne...and vengeance!

The manhwa that inspired the NCsoft game.

Hundreds of millions of years ago, highly-advanced beings looking to make a planet for themselves purposefully tampered with Earth's natural processes in order to create multi-cellular life. Watching the planet's evolution closely, they continued to help life evolve further in the hopes of having actual civilization develop.
It's now 1996 in Seoul, where Hyesong, a high-school student, struggles with the usual problems of youth. The only unusual thing about him is that he's been having the same apocalyptic nightmare for an entire month; in the dream he is an great fighter and genius tactician who faces off against a seemingly-unbeatable foe.
Are these dreams not really dreams? Does he really have a role to play in the cosmic balance of the universe? And is the new girl in his class really just a normal student?

From back of book:

He-Sung has dreams of the Earth being destroyed by alien invaders! In these dreams he is a motorcycle-riding warrior, the last defense against the alien armada. By his side is a beautiful armor-clad girl with strange powers and futuristic weaponry. But these are just dreams, and they don't mean anything... right? That's what He-Sung thought... until his mystery dream girl appeared as a new student in his school! But if she is real... can the aliens be far behind?

The lord of darkness has decided to wake up the Dragon God that will give him the necessary power to dominate the world. But the Dragon God doesn't like his intentions and decides to entrust the mission to find the element that will revive him to the human who holds his soul.

Sequel(?): 팔용신전설 Plus

So Young meets an alien prince. He needs a human woman and has a proposal for her. What will happen to So Young if she accepts his proposal?

One of the most loved works of the author herself.
An epic sci-fi fantasy story of love and war of human and aliens.
Taeyoung is an average high school student, but from one day, he starts getting attacked by mysterious enemies and saved by even more mysterious allies. As his other self starts to awaken within him, he must make a decision to follow his destiny...

Originally published in Daenggi in 1993, but after the publisher closed, it was moved to Wink in 1996.
Received "Korean Manhwa of Today" award, and is also archived in the National Library of Korea.