Two-Dimensional Fishing Trip

This is a story about fishing to save the world! The male protagonist in this book is very strong, but not too invincible. There's a lot of harem in this book, but it's not too studly. This book will try to make it more comfortable for readers, and try to avoid any unreasonable or wise things. . . This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.