Old Greatest swords man[one piece x yoriichi male!reader]

Chapter 1 'life or death'

[Third Pov]

'M/n was running to the beautiful wisteria trees with blue spider lily's growing under it. Which only blooms once or twice a year'

M/n was only a 7 year old swordman who somehow caught the interest of both marines and pirates. Garp even tried to convinced M/n to be a marine. But of course M/n declined and continued walking around the wisteria island. Both pirates and marines are interested in the island that M/n is living on. Not many have seen wisteria trees in other kinds of islands. And yet their biggest question about it was 'what is a blue spider Lily?' M/n was infact a kid with high intelligence and was able to grow the rarest flower that was last seen in the 1400's.

"Spider lilys are considered mildly poisonous, so don't eat them. In the island, where it is called "Higanbana", the plant is used to protect the rice paddies since it is toxic to rats and other wild animals"M/n explained it to both marines and pirates but many has ignored M/n and tried it and their death was caused.the reason why marines and pirates never knew about the blue spider lilys is because it only has 2 or 3 days after the bloom. Even the smallest mistake it can lead it to wither. M/N who was a child was very careful when taking care of spider lilys. He was treating them as the same to a homemade bamboo flute that his dearly brother made before running away. After sometime a certain pirate crew keeps hearing about this blue spider Lily and wisteria trees. So they decided to visit the island after their adventure but coincidentally they found the wisteria island on their way. And there stood an island with wisteria trees around and there was a boy with a blue haori with cloud like design on the haori while a fox mask on the side of his face while a sword was placed on their waist

(Pretend tanjiro is [M/N])

M/n Pov (age 17)

I was walking around the wisteria trees again making sure that nothing damaged it. And after sometime of walking. I can see new people on the island. A raven haired male with a hat , a blonde guy with a sword on their waist, a red haired kid and a blue haired clown? A samurai with 2 katanas and a cyan haired female with a haori beside the samurai

'i guess people are interested in this nowhere island.. I'll check on them after my checking.' after that I continued walking checking all the wisteria trees.