After he and Evangelyne continue their mission to find Agumon's partner Tai, they revealed that Black Gear has kidnapped Tai after he rescued T.K., they confront him for kidnapping Agumon's partner.
"Why hello Yugo, where's Tai's digimon partner." said Black Gear.
"I made him asleep, I consoled him." said Yugo.
"Oh, and why that." said Black Gear.
"You, you made Tai lost didn't you, where is he." said Yugo.
"I kidnapped him, he can't hear you now" said Black Gear as he holds a kidnapped Tai.
Yugo and Evangelyne gasps as they thought that Tai is gone missing, but he's kidnapped by Black Gear, this made Yugo confront him.
"You, you, YOU MADE TAI UNCONSCIOUS!" said Yugo in anger.
"Yeah, and he will never wake up, ever." said Black Gear.
"YOU MONSTER!" said Yugo in anger for kidnapping Tai.
As Yugo tries to defeat Black Gear for kidnapping Tai, a mysterious male Digimon named Treasuremon stops him and introduces himself.
"Yugo, stop." said Treasuremon as he stops Yugo.
"Who are you, and how did you know my name!" said Yugo in shockness.
"I am Treasuremon, your new partner, here's your Digivice." said Treasuremon.
"Huh, Digivice." said Yugo in a confused look.
"Yeah, you can Digivolve me into my digivolutions, and there's a special thing for you, you have to find the five pieces of the Digicode to unlock Green Code Evolution." said Treasuremon.
"Oh, okay." said Yugo.
"Did you trust me now little kid." said Treasuremon.
"I'm twelve years old, and I'll trusted you." said Yugo as he prepares to Digivolve Treasuremon.
Yugo begins his first digivolution to Treasuremon, he catches the card digievolution.
"Digivice, come with me." said Yugo as he begins his digivolution.
Yugo closes his eyes as a flash light flashes in three times, then he opens it as he uses his card into his Digivice.
"Digivolution, download now." said Yugo as he finishes his digivolution to Treasuremon.
The digivolution started with Treasuremon and begins to winking himself. He closes his eyes as he covers his body, and begins his transformation into Raccoonmon.
"Treasuremon, digivolve into." said Treasuremon as he begins his transformation.
Once Treasuremon spins in five times, he becomes Raccoonmon as he finishes it.
"Raccoonmon" said Treasuremon as he turns into Raccoonmon.
Yugo believes that he did it to transform Treasuremon into Raccoonmon.
"I, i did it, I did it, I made Treasuremon transformed." said Yugo cheerfully.
"Now, defeat Black Gear and save Tai, little fella." said Eva.
Raccoonmon defeats Black Gear in his ultra mega blaze, causing him to return his dark world.
"Defeated by the kid's partner, I really hate him, I'll get you for this." said Black Gear as he returns back into his dark world.
Since Black Gear is defeated, Raccoonmon transforms back into Treasuremon, and wakes Tai up from his unconsciousness.
"Huh, what happened, who are you little fella." said Tai as he wakes up.
"I'm Treasuremon, Yugo's partner." said Treasuremon.
After he meets Treasuremon, Tai looks at Yugo and Evangelyne, thanking them for rescuing him.
"Yugo, Eva, you guys rescued me, thank you." said Tai as he thanks Yugo and Eva for rescuing him.
"You're welcome Tai, I thought you were lost." said Yugo.
"I was after I saved T.K., but Black Gear kidnapped me before you guys rescued me." said Tai.
"Please don't be lost okay." said Eva as she tells Tai that he will no longer be lost.
"Hey Yugo, where's Agumon." said Tai.
"I made him asleep since he missed you." said Yugo.
"Oh, okay, should we sleep where Agumon sleeps inside before I'm going to reunite with my friends." said Tai.
"Sure Tai, let's go Treasuremon." said Yugo.
As Yugo, Evangelyne, Tai, and Treasuremon went to the lonely farmhouse where Yugo made Agumon asleep and put him inside to get some sleep, Treasuremon is now Yugo's digimon partner.