The Strongest King Encyclopedia, themed around marine creatures. - Title: Underwater Strongest King Encyclopedia - Author: Masukawa - Publisher: Gakken - Theme: Marine Creatures - Content: Rulers of the Earth Thank you for viewing. There are no writings or folds. It has only been read once, so it is relatively clean. No cover. There are no cigarettes or pets in the storage environment. The items for sale are stored at a private residence by a non-professional, and the condition check is also based on a non-professional's judgment. We kindly ask for your purchase if you understand that this is a used item.