Change Guy
Quantum Mistake
What would you like to edit?

Change Guy

Alternative Titles

English: Quantum Mistake
Japanese: 체인지가이


Type: Manhwa
Volumes: 31
Chapters: 338
Status: Finished
Published: , 1998 to , 2004
Genres: ActionAction, ShounenShounen
Authors: Son, Eun-Ho (Story), Choi, Myung-Soo (Art)
Serialization: None


Score: 7.451 (scored by 13511,351 users)
1 indicates a weighted score.
Ranked: #28802
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #4862
Members: 2,739
Favorites: 30
Ranked #2880Popularity #4862Members 2,739
Add to List
Volumes: /31
Chapters: /338
buy from amazon
* Your list is public by default.


It's nature vs. nurture when a nerd swaps bodies with the toughest guy in school! Tuji and Usoo have swapped...their bodies! After becoming the subjects of a mad scientist's experiment with her latest invention - the quantum teleporter - their bodies are switched, leaving only their minds and spirits intact. Usoo, who was once a model student, must face the life of Tuji, a teenage menace. Never having an enemy in his life, he now has to deal with the handful of Tuji's list, but will his kinder, gentler demeanor ward off his rivals? Or will survival determine his future? Will he become the hardened fighter that matches his new exterior?


Change Guy had one volume published in English as Quantum Mistake by ADV Manga on August 17, 2004.


More reviewsReviews

Oct 1, 2014
Dragnewt (All reviews)
Quite a nice read, interesting twists(some that could have been without) , has great potential, sadly it was cut short which did not allow many characters to be fully developed, while others just disappeared.I recommend only reading the first half, cos the second was a sortta a letdown
Jul 15, 2013
zacho3to (All reviews)
This Manwha was a desperate search for a manga similar to The Breaker. The fighting is pretty good, and the art compliments the action very well. It felt realistic if you put aside the fact that every single South Korean guy only wants to fight and kill one another! I wish the author would have spent more time on the characters' back stories, but at least it wasn't like Naruto!

It may have been the translators fault, but the language used was very repetitive in a lot of places. Lines like, "he has surpassed human limitations!" made me think, either the characters were read more
May 17, 2008
stuver (All reviews)
I decided to look for a manga with a lot of chapters since I got bored of reading ones with only 20 and then when the story gets good I have to wait until more are released, well this manga answered my 'prayer' so to say. The characters are rather in-depth and the art is up to todays standards with the characters as well as the environment. Fighting is the main focus of the story with bone cracking, joint popping and muscle tearing action that will have you being drawn in just to find out how much pain these people can handle until one of read more

Recent News

Recent Forum Discussion

Poll: Change Guy Chapter 338 Discussion
workisnotfun - Apr 30, 2012
10 replies by uzee »»
Dec 31, 2019 8:05 PM
Poll: Change Guy Chapter 131 Discussion
Rasco - Mar 23, 2013
1 replies by _Dazzle_ »»
Oct 19, 2015 7:43 PM