The art is much better then average and in color (typical webtoon), but NOT in the "very good" zone. This webtoon is in the end all about fighting, unfortunately you can see often some major inconsistency in movements. I mean if the perspective change the fighter are standing different than i would expect from the picture before. And the fighting choreography isn't very good. But still better then the average (IMHO, most fighting scenes in other mangas/manhwas are unbearable bad). Look at, for example, Sun-Ken Rock how powerful movements and bodies can be drawn.
So far for the art. The beginning is very nice. I loved it. Without telling to much the reason for the director of this school to make it mixed gender school is to allow the girls, which are sometimes something more like amzones than girls, to get some experience whit boys and to loose their prejudices. So to help the first, and until now only, male student in his new school and to motivate the girls to socialize whit the boy, the director gives the girl which socialize whit the boy the most, a lot of extra points for the highly regarded honour distiction at the end of the year. Of course the most motivated girls, which are of course also the most powerful girls in the school, goes after the prize. And of course the wuss boy does not know anything about this prize. One of the most smartest explanation for a harem scenario which i ever have heard (i mean why more than one girl goes after the same boy). Respect!
At the very beginning the characters were funny, quirky and fresh. Fighting was only something used to make some comedy. And the tragic situation of the boy (father is dead and mother is run away from their children), explained directly at the beginning of the webtoon, brake from time to time the pure comedy setting so it don't get to shallow. Soon after this the webtoon begin to change, for the worse. First one of the girls lose its edge and is only a madly in love girlish girl which, only if the author needs it, show her superb fighting ability. Other girls follow this lead without being girlish. Second it is all about the looser boy which change his attitude and become the super fighter, or so. I have "read" till chapter 69 and the last 40 chapters are all about fighting. What even worse there are a lot of fighting actions which are totally, i mean TOTALLY, uninteresting for the plot or the character development. And they aren't even good fighting scenes. The last 20+ (from 69) chapters are about the first(!) day, which haven't even ended yet, of preliminaries(!) of a fighting event! It gives me creeps how long, in chapters, the main event will be.
So in the end i really enjoyed the beginning but the dominant "super-wuss transform to super-fighter and all the girls are getting wet" scenario which begins to crystallise is for me 'Been there, done that.' in other words boring. If you have time than you can give it a try. I keep this webtoon in reading list to look if my prediction is right. But i think it will take real-time years till some real big plot turning points (besides becoming super-fighter) emerge in chapter 356 or so. If the author had been following his first scenario the Manhwa would have been great.