Comprehensive Comics: Beginning with the Prince of Tennis

System functions: Exchange items, skills, and magical powers from all over the world. Traveling through the world, it has its own system-generated space that can be inhabited. People in the world call it the Crystal Palace. … The first world, Prince of Tennis. I have written a book, and I have suffered a lot from it. After all, I gain wisdom from every experience, so I should not suffer any more losses. "The introduction is weak, please read the text." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.