Hello, I understand that your question is from the novel "Official Tough Guy".
" Self body " in the novel referred to a special type of human tissue with extremely strong vitality and self-healing ability. This organization was usually used to practice martial arts or perform mysterious rituals to give people superhuman strength and abilities. In the novel, the cultivation method of "one's own body" was called "inner strength". It was an extremely mysterious martial arts secret book that only a very small number of people could master.
It was important to note that the concept of 'one's own body' was only a fictional concept and did not exist in the real world.
Naruto might meet some foreign ninjas from far - off lands that have completely different fighting styles. These ninjas could teach him new ways to use his chakra and improve his combat abilities. He may also encounter some mysterious hermits living in the mountains or forests who possess great wisdom and unique jutsu. They could guide him on his journey of self - improvement and give him valuable advice on how to become stronger as a ninja.
On his first hitchhiking trip, a boy might get a ride with a group of backpackers. They could introduce him to new travel hacks, like the best places to find cheap but delicious food in different towns. They might also share their own hitchhiking horror stories, which could be both scary and educational at the same time.
Trip's character often becomes more self - aware. His initial focus on being the best trainer might shift slightly as he realizes his feelings for Ash. He starts to see Ash not just as a rival but as someone important in his life.
I recommend " My Beautiful Roommate." This book is a novel about urban life. The main character is an ordinary person who walks into the underworld. He walks step by step into the underworld and grows up step by step through his wisdom and courage. The book is full of swords and swords, grudges, love and hatred, and the protagonist who is constantly improving. It fits the type you described very well. I hope you like my recommendation.😗
There's no way to know for sure who the 'little towel guy' is without more context. It could be a character created by a child during playtime, or a unique creation in a local folktale or a self - made short story.