Merry

Merry is Kaya's loyal servant and was the one who designed the Going Merry.

Appearance
Merry is a fucking wierd ass lamb guy butler or some shit whose most distinguishing feature is his lamb-themed appearance. His hair is curly like a lamb's fleece and has two lamb horns sticking out of it; these have been seen shorter 20 years before the start of the series. His lips also resemble those of a lamb's. Even his collar has a fleece around it.

After the timeskip, Merry has grown his hair out somewhat longer and has also grown a light mustache and goatee.

Kaya
Merry is a very dutiful and empathetic servant to his mistress, willing to fight and even die for her.

Usopp
At first, he is very antagonistic towards Usopp, who would constantly jump over the fence and hedges of Kaya's mansion and tell her eccentric stories as Merry felt that Usopp's lies would somehow corrupt Kaya. When Usopp felt he had no time to explain Kurohadol's betrayal to Kaya and tried to force her to leave the village, Merry immediately came to her defense and fired a gun at Usopp, wounding him in the left arm without killing him. Merry knew the tragic story behind Usopp's chronic lying - it is the only thing that helps him cope with the death of his mother, whom he tried to save from her sickness by lying that his father, Yasopp, had returned to be with his family. He does, however, change his view of Usopp after being attacked by Kuro, when he tells Kaya that Usopp had been telling the truth.

Kuro/Kurahadol
At first, Merry trusted his fellow butler Kurahadol, as they both see their mistress' well-being as the most important factor. They had a friendly relationship during the three years of serving their mistress together. They also both saw Usopp as an untrustworthy liar who only loves to cause trouble, and as such, Merry refused to believe Usopp's claim that Kurahadol was a pirate attempting to steal Kaya's fortune, and even laughed it off as something ridiculous when discussing it with Kurahadol. However, when his colleague revealed his true colors, Merry's trust and liking instantly turned to fear and hate.

Kuro, in turn, showed no genuine sympathy for Merry from the beginning, and even attempted to murder him for no necessary reason, but instead for the sheer pleasure under the crescent moon. If anything, Kuro was rather disappointed that Merry managed to cling onto his life despite that attack.

Trouble at Syrup Village
One day while serving his duties, Merry noticed some trespassers come into the mansion while the guards who guarded the front gate went for lunch. Seeing this, Merry alerted Kurahadol, another servant of Kaya's whom she confided in after the death of her parents. As Merry continued on with his duties that day, he received the special glasses that Kaya ordered from the next town and presented them to his mistress. These glasses were to be given as a present to Kurahadol for his third anniversary of him working under Kaya and her family. This, Merry agreed, would be a wonderful present.

Though Merry had happily given Kaya the present that she planned to give Kurahadol, he soon found her later in a dire situation. Usopp had suddenly came to her window and started babbling that Kurahadol was actually a pirate named Kuro who wanted to steal her wealth. Believing that this was one of Usopp's lies in an attempt to kidnap Kaya, Merry vigilantly protected Kaya from Usopp and in the process shot Usopp in the arm. As Merry directed some of the other people of the town who were chasing after Usopp, he was left with Kaya who had collapsed from the situation.

That night, when Merry met with Kurahadol again after Kurahadol's trip out of town, Merry informed his fellow servant of the events that transpired after Kurahadol left. As Merry explained to his fellow servant what happened, Kurahadol found Kaya's gift for him. Merry, seeing what Kurahadol found, explained to him what it was. Suddenly without warning, Merry saw Kurahadol break Kaya's gift. "Kurahadol" then reveals his true colors as "Kuro", and under the crescent moon, he was overcome by a lust for blood, throwing Merry into confusion and terror. When Kuro unsheathed his Cat Claws to satisfy his uncontrollable killing intent, Merry's question for his colleague's weird behavior was answered; he instantly realized that Usopp was telling was the truth. The faithful butler immediately screamed for his mistress to run, but his voice failed to reach her before Kuro slashed him down, leaving him on the floor in a pool of his own blood.

Though he was left wounded that night, Merry was fortunate enough to survive and found by his mistress. Upon being found, Merry told her what happened and asked her to try and stop Kuro from continuing with his scheme. After telling his mistress, Merry was left in the mansion while the events involving Kuro, Kuro's crew, and the Straw Hats took place. After the entire ordeal took place, Merry's mistress came back and treated his wounds. As he learned from her what had happened while being treated, Merry was asked by his mistress to keep all that had happened a secret from the villagers. He was told that this was a request from Usopp who wanted it to be this way. As Merry agreed to this request, he was then asked by Kaya to give a ship to the Straw Hats as a reward for their help in the whole matter.

Agreeing to Kaya's request, Merry prepared the Going Merry for the Straw Hats. Upon presenting the ship, Merry explained the basics of the ship and how to maneuver it. After a joyful scene wherein Usopp joined up with the pirates, Merry noticed his mistress actually wanted Usopp to stay as they watched the Going Merry sail away. Seeing this, Merry confided within her a part of Usopp's past and the reason why he lies so much. After revealing Usopp's story to her, Merry asked Kaya to become stronger to repay Usopp for everything he had done for her. With that, Merry's mistress agreed and told him that she would become a doctor.

Two Years Later
Merry is later seen protecting Kaya from a group of suitors as she continues her medical studies in a cover story series.