Drawn to the mystique of the unknown, Hunters travel the world in search of terrifying creatures, incredible riches, and unexplored lands. Gon Freecss is a naive-yet-determined young boy who aspires to join the ranks of these individuals, in order to find his missing father Ging - a master of the profession himself. To reach his goal, he partakes in the formidable Hunter Exam, a series of tests that push the participants to their physical and mental limits, with a Hunter License as the prize. During the exam Gon befriends vengeful Kurapika, doctor-to-be Leorio, and skilled assassin Killua, who have entered for their own reasons. But with the sinister Hisoka standing in their way, will Gon and his friends be able to succeed in obtaining their reward, or even escaping with their lives?
Sousuke Sagara is far from the average high school student - not only is he highly trained in military tactics, he puts his knowledge to use in every single applicable situation (and even those nonapplicable ones.) So, when confronted with high school, he tends to turn average high school experiences into off-the-wall adventures. Love letters become terrorist threats and field trips become commando operations; his survival depends on the watchful eye of his best friend and classmate, Kaname. Together, they may just make it out of high school alive...
In AD 2008, mankind developed deadly weapons and eradicated most of the Earth and its people. 20 years later, a young boy named Conan and his 'grandpa', one of the last survivors of the devastation, live a peaceful life on Remnant Island. One day Conan rescues a girl on the beach named Lana and learns the true nature of the rest of the world. After Lana is kidnapped, Conan's good nature propels him into the biggest adventure of his life: to find Lana, High Harbor, Dr. Lao, and a way to crush the evil and oppressive city of Industria.
While examining an old Go board in his grandfather's basement, twelve-year-old Shindo Hikaru is possessed by the restless spirit of Sai, an ancient Go master who has waited for over one thousand years to play the Hand of God: the perfect move. Sai convinces Hikaru to act as a vessel for making his moves, but it is soon clear that Hikaru also enjoys Go and wants to play his own games. Moreover, the rules of Go have changed since Sai's time, and Go players from all over the world are now much stronger, having had the benefit of hundreds of years of evolution and experimentation by the masters before them. Can this unlikely pair form a successful partnership and rise to the top of Japan's Go community, and can Sai finally play the Hand of God and find some peace?
Though most shounen shows have the similar themes of being there for friends and training to aquire new skills... these two strike me as more similar than most. Gon and Hikaru both display a sense of naivety and hidden strength that only served to remind me of the other show/character. Though the circumstances in both shows are very different, I think if you enjoyed the characters and their methods of self improvement in one show then you would like the other show as well.
18 year-old Takumi has been delivering tofu for his father's shop since he was 13, learning to drive fast in all weather conditions. One night he is seen racing down the mountain by Keisuke, one of the best amateur racers in Japan. Quickly overtaken by Takumi, Keisuke vows to challenge the White Hachi Roku and discover the mystery behind its driver's skills.
Tak and Gon both have major father issues; they are looking to improve their skills to be validated by their fathers, and both of their fathers have long shadows that the protaganists constantly find themselves under.
Yukitaka has just left Tokyo, eager to transfer to Kisaragi High where he's been recruited to play baseball. However, upon entering his new apartment, the boy is met by a man with long blonde hair who claims to be… an alien?! After initially scoffing at the notion, Yukitaka discovers that the alien – Ouji – is for real, has amnesia and, what's worse, now wants to live with him in his apartment. The fact that scientists and mysterious guys in black suits are after Ouji becomes the least of Yukitaka's problems as his new guest turns out to be more than a handful to handle!
Both shows are based off of manga written by Yoshihiro Togashi. And the main character of Level E is fairly similar to Hisoka from Hunter X Hunter. There are also a few other characters in Level E that resemble the ones in Hunter X Hunter. If you like one you should watch the other.