At last...,its summer time!,Y/n is very excited that this year she will be spending it together with her loved ones in Tokyo. After the trouble with the time machine and Pickle,Y/n still craves for adventure.She goes to the beach with her friends and as they are hanging around and having fun,she finds a bottle washed up on the shore with something like a map inside it,but no matter what she does,it doesn't open. When she finally manages to open it,inside it she finds a treasure map,but despite the treasure map,she accidentally freed all the sealed dangerous mythical sea creatures kept in it for thousands of years, including a very dangerous spirit... To stop the creatures that have now spread all across the sea from creating chaos,Y/n has to go on a long journey and find the unknown treasure drawn on the map,but in the process,she has to face many problems... With the others help,they start invastigating about it and try to collect clues since there isn't much information drawn on the map.Y/n collects information and with Guevaru's best pirate ship,her and her friends sail into the seas to find it! In the prosses of it all,she finds new...interests... Will she find the treasure and get out of this journey unharmed?What awaits for her into the now dangerous seas..?
20 parts