I recommend the following novels to you. They are all Naruto or One Piece Doujinshi novels with more than a million words. 1. "I'm already invincible after signing in for a year in the Ninja Realm": After the protagonist became a member of the Uchiha clan, he awakened the check-in system called the strongest player system. After a year, he became invincible! Ding, ding, ding. Every time he signed in, he would obtain a divine artifact, making the protagonist stronger and stronger. 2. [The Legend of Tycoon Muye: The protagonist who came to Naruto World with a pay-to-win system. He can become a strong player after paying.] In order to make money, he embarked on a path of swindling and writing books, eventually becoming a tycoon. 3. [One Piece: The Silver King]: The Silver King's ability to live forever and never die was brought to the world of One Piece. The protagonist abolished his talent and faced the competition of One Piece with his own strength. However, his goal was to live freely on the sea. I hope you like my recommendations. Muah ~ If you need any other recommendations, let me know at any time ~