If you're looking for manga similar to History's Strongest Disciple Kenichi, you might like these titles. All recommendations are made by Anime-Planet users like you!
Jane (Jae-in) is an irrepressible girl who aims to be a champion, and Tae-jin is the innocent boy who loves her.This is the story of their challenges on the road to the championships, and an unlikely summer-time love.
Both History's Strongest Disciple Kenichi and Green Boy are about a physically weak boy who gradually becomes stronger. In both of those series the male lead joins a dojo (in case of Green Boy a boxing club). It should be noted that the fact that a girl he likes is a member of said dojo is a big part of the reason for joining (in case of Green Boy it's the main reason for doing so). Green Boy is more on the serious side while History's Strongest Disciple Kenichi has less romance and some fanservice, nonetheless if you liked one, odds are you will like the other one as well.
Five hundred years ago there lived a feudal lord with a vast amount of spiritual power. To keep it from falling into the hands of demonic Ayakashi, the mage Tokimori Hazama and his two students were called to defend the land. However, they fell ill, and the feudal lord was killed and buried on the land now called Karasumori. Years later the successors of the Hazama students, Yoshimori and Tokine, have inherited the powers of the Hazama clan. They are Kekkaishi, users of the Kekkai, a secret and powerful technique that creates a strong barrier to capture and eliminate Ayakashi. Protectors of the power buried beneath Karasumori, Yoshimori and Tokine spend their days in the school built on the land, and their nights defending it from attackers who wish to use the power for their own purposes. With Karasumori's power growing more unpredictable everyday, will Yoshimori become strong enough to protect the ones he loves?
At first these two might seem different because of the setting and premise, but they share many underlying themes. we have a younger boy infatuted with a older and more skillfull female. the female leads of both stories slowly come to respect the protaginists as they grow.
Another similarity between the two exist in how tactics and skills are employed in battles as they are learned, instead of random powerups
Wild's High has a 42-year history as a fighting specialized, girls only, private high school meant solely for the elite. It is also the place that Wild's-League is held: the most popular event in the country and the only place in the world where teenage girls have brutal fights with their lives on the line. One year the school changed from a girls only school to a mixed gender school. The only male student, Song Jae Gu, has been granted a full 3-year scholarship regardless of grades. Being someone who had to spend every moment either working or taking care of his younger brother and sister, he accepted. But after meeting Queen, the bloody champion of Wild's-League, drenching her in coffee, calling her a monster, and getting caught seeing her while she was taking a shower... his scholarship could prove fatal.
The main guy protagonists start out as total wuss bags, unable to properly punch some guy in the face or kick his balls clean off. So they meet up with a bunch of hot chicks (Wilds) and a hot chick with another hot chick and manly flex men (Kenichi). But they learn about martial arts, how to defend themselves and even engage in some romantic tension while they're busy kicking ass and when they aren't breaking faces. Kenichi focuses more on ecchi than Wilds but both provide solid martial arts action and some depth behind all the bone breaking moves and styles with some great bouts of comedy; fun reads for fans of the martial arts genre.