I Have a Sign-In Space in Pirates

Luo Yu traveled to the pirate world, was imprisoned in the LV3 Hungry Hell of Impel Down City, and was bound to a god-level sign-in space. As long as you sign in at the designated location, you can get rewards and summon characters. This summoned character came from a certain point in time in One Piece and was in the space of Luo Yu's mind. Whitebeard, Sengoku, Roger, Garp, Kozuki Oden, swordsman Ryoma... Big guys from the old days! All gathered here! And their abilities were slowly obtained by Luo Yu. Shake Fruit, Buddha Fruit, Listen to All Things, Iron Fist of Love... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.