This is a very uncommon shoujo manga, full of action, violence and almost no woman.
Social justice warrior in our current political climate often complain about lack of representation of nonwhite nonmales. Therefore its funny that this manga which i assume targets young females has almost no important female character. Some people might argue that this is no shoujo manga but they would be wrong, the portagonist Ash is written to be the crush of most young girls.His IQ is 200, he sacrifices himself for his loveinterest, he is acknowledged by every other character to be stunningly beautiful (also i find most characters look very much alike), he is courages and so on. The only thing that could stand in the way of being the crush of the female reader is his love interest in another boy, but yaoi is very popular with females so that shouldnt be a problem. He beeing the perfect human is really a problem. Everyone is familiar with mary stu characters. On the other hand one must give the manga credit for introducing a character that is so capable that even our demigod ash capitulates before him.

What i disliked the most was this repetitive sequence of: ash is captured, it looks like its game over, ash frees himself, ash is captured, it looks like its game over, ash frees himself...
If the important characters are always saved in the last minute than it doesnt surprise the audience anymore. Its no fun. To be able to take the manga seriously there need to be serious consequences somethimes. Even though everyone knows that Ash is the smarter than Einstein his enemys always underestimate him, then they lose, then they underestimate him again. Very tiresome.
But its still a decent read.