[Crossover] A Journey Beginning with Prince of Tennis

(An embarrassing old work. Poor writing, awkward content, and toxic. Proceed with caution!) This story is also known as "I Still Don't Believe in Myself Today." If you can't get through the first few chapters, I recommend starting from Chapter Seven, the regular-player selection tournament. The protagonist starts off at a low point, so there are no scenes of him playing tennis (he can't even hold a racket). The early chapters focus mainly on romance. A few chapters later, the focus shifts to his career. Planned progression: Prince of Tennis, middle school year two, Kanto Tournament (completed) - Bungou Stray Dogs (completed) - Demon Slayer (completed) - One Piece (in progress) - Prince of Tennis, middle school year three... Prince of Tennis arc (Bitter - sweet - bitter) Just made it onto the regular team. Shuu Zou: Oh, I'm so useless, and I still made the regular team. Must be luck! The team just won the championship. Shuu Zou: Oh, we only won by a hair because I was on the team. I should quit! Keigo Atobe: Shuu Zou, just try quitting. Play brilliantly for this young master! Bungou Stray Dogs arc (Sorrow with a touch of joy) Huh? My head feels all fuzzy. Where is this? My whole body hurts. A little boy who looked about six or seven, with black hair and purple eyes, staggered along a dilapidated street. Huh? Right, where are the adults? I have to follow the adult. I clearly sensed that the adult was about to shine. Why can't I see him? The adult is gone too? "Oh my, are you the Death-Calling Bird who's been making a name for himself lately? Want to follow me?" A slender, fair hand reached out. "Lord Dazai, don't! He's the famous Death-Calling Bird! Whoever he follows dies!" What an annoying voice. But what does it mean to be annoyed? Demon Slayer arc (With a little bitterness mixed into the fun) "I, I... All right, I was wrong. I'll never talk to him like that again, and I won't force him to learn martial arts. Just let go already!" The burly man shouted in a cowardly voice. As soon as he finished speaking, a little boy of four or five jumped out. Seeing how the fierce man had turned into such a coward, he laughed and said: "Hahaha ^ω^, Dad, you're such a chicken! You're actually so scared of Mom! Bleh, coward!" One Piece (Upbeat overall) Shuu Zou: Ace!!! You ate without paying again. Ace (scratching his head): Haha, I forgot. Shuu Zou: Hmph, fine. Sorry, I forgot how to cook. Ace (alarmed): Ah, no, don't! Serious blurb Shuu Zou is a person with an unusual gift. As long as he wants to do something, he gains the corresponding talent. The stronger his desire, the stronger his talent. At the same time, his lack of confidence and anxiety also grow stronger, rather like depression. The protagonist is a little down at first, but he'll get better later. There are no dedicated villains or conspiracies specifically targeting the protagonist in this story, though there are some schemes. The protagonist has a special identity. Note: There are no supernatural powers when playing tennis. "The Zenitsu Cosplayer Was Reborn" Irregular updates. "My Ability Is Called The Book of Songs" Update schedule undecided. Heh, the Book of Songs has 305 poems. How long will it take to randomly get one that's useful? Every day, one poem from the Book of Songs becomes an ability, and it changes at random. What you get depends entirely on luck. I accidentally wandered into a battle between the Port Mafia and some other people. Today's ability is "Guan Ju." What am I supposed to do? Theme: Overcome negative influences with positivity from yourself and your companions.