If you like management and construction (?), You can also read this book. It has no CP, has a system, and has a slight father-daughter relationship with Rocks, but the main focus is to work hard on your own.
The heroine Irene is a mermaid (but her fighting ability is superb), and she and Hawkeye are childhood sweethearts. They are so sweet that my heart warms.
A Life of Selling Gossip on the Grand Line
33.3kFavorites43.9kClicks/ch128.4kNutrition
On the Compatibility Between Pirates and the Book of Friends
14.8kFavorites27.7kClicks/ch24.8kNutrition
Eagle Eye, You Smell so Good
7kFavorites8.1kClicks/ch16.6kNutrition