No, One Piece is created by Eiichiro Oda. He might have a team of assistants to help with various aspects, but the main creative vision and story come from him.
'The One and Two Her', an urban romantic comedy directed by Song Yang and starred by Zhang Yunlong and Song Yiren. The drama told the story of the AI engineer Gu Jiuli and the kindergarten education graduate Hao Jing, who had a dual identity. They grew up together and achieved each other's goals. In the end, they both achieved their dreams. The drama was approved by the State Administration of Radio, Film and Television in October 2020 and broadcasted on iQiyi. In 2022, the drama was officially broadcast in the mainland of China. The details of the plot needed further understanding.
Well, it depends on your perspective. Some might think it's the only one, but others may have found other manga with similar themes that they love just as much.
I can't answer the name of a comic based on a picture because the name of a comic is usually related to its story or protagonist. If you can provide more information such as the plot or author of the manga, I might be able to help you find its name.
No. While some manga novels are aimed at children with simple storylines and colorful art, many are for adults too. There are mature manga novels that deal with complex themes like politics, war, and adult relationships.