Chopper is very much alive in the One Piece manga. The creators haven't written his death into the story. He's an integral part of the crew and their journey continues without that tragic event.
The fanfiction can also add a new dimension to the characters. Chopper's relationship with lemons can show different aspects of his personality. If he's really into studying the lemons, it can highlight his scientific curiosity. And it can create new dynamics within the Straw Hat crew as they interact with Chopper's lemon - related adventures.
One interesting fanfiction could be about Chopper's further adventures in a new, uncharted island where he discovers a unique type of medicinal plant that has strange effects on the Straw Hat crew. Another might be a story where Chopper has to take on the role of the ship's doctor in a really difficult situation when all the other crew members are incapacitated. There could also be a fanfic that focuses on Chopper's past, delving deeper into his time before he joined the Straw Hats and how he coped with being alone as a reindeer in a human - dominated world.
One interesting storyline could be Chopper discovers a new type of medicine on an island and Robin helps him research it. Their different skills, Chopper's medical knowledge and Robin's ability to read Poneglyphs, combine to unlock the secrets of this new medicine which could potentially save many lives in the One Piece world.
Well, one interesting storyline could be Chopper getting involved in a zany adventure on a new island where he discovers a unique type of lemon that has magical healing properties. He then has to protect this lemon from pirates who want to use it for evil purposes.
I'm not sure specifically which 'chopper sad story' you mean. There could be many stories involving something named 'chopper' that are sad. It could be about a pet chopper that got lost or a vehicle chopper that was damaged beyond repair. Without more details, it's hard to tell the exact story.
Another option is to check out some One Piece fan forums. These often have sections dedicated to fanfiction, and you can find some really well - written and unique Tony Tony Chopper fanfictions there. Some of these forums also have review sections, which can help you determine if a particular fanfiction is worth reading.
One way to develop their relationship further is through cultural exchange. Since Chopper is from Drum Island which has its own unique culture and Robin has traveled to many different places, they could exchange knowledge about different cultures. Robin could teach Chopper about the ancient cultures she has studied through Poneglyphs, and Chopper could share about the traditions on Drum Island. This would not only expand their knowledge but also bring them closer together as they learn more about each other's backgrounds.
One element could be loss. For example, if Chopper is a person's beloved pet or vehicle, and it gets lost or stolen, that would be a sad start. Another element might be illness. If Chopper is an animal and it falls seriously ill and there's no way to cure it, it would be a tragic situation.
One Piece's Hezhi Nation was a country full of sad stories because it used to be a powerful and rich country. However, as time passed, it gradually lost its advantages and status and finally fell into trouble.
The Country of Harmony used to have a prosperous maritime trade and a powerful military force. It was one of the largest trading countries in the world. However, with the development of the story of One Piece, the country of He gradually lost its maritime trade and military status because its government was corrupt and its people's lives were difficult due to the lack of resources and energy. It was unable to trade and war with other countries.
The political system of the Land of Harmony was also very unstable. The government was corrupt, and the people lacked freedom and equality. Some people were even imprisoned and persecuted. This political environment had put the development of the Kazuki Nation in a difficult position, making it impossible for it to maintain its original status and strength.
The history and culture of the Land of Harmony was also an important factor in making it a tragic story. The country of peace had a long history and culture, but its government and people did not respect these cultures and even destroyed and tampered with history. This sense of cultural loss and historical emptiness caused the Country of Harmony to lose its own culture and beliefs, becoming an isolated and helpless country.
As a result, the Kazuki Nation had experienced a long period of ups and downs, experienced prosperity and decline, lost its advantages and status, and became a country full of sadness.