On File Island, Azulongmon gathered all the heroes together to prepare them what is to come.
Curious, Shoutmon had to ask. "So who are these Black Digimon?"
"There are Digimon made of the Virus which is based on your Data, and the Data of some of your friends." Azulongmon replied.
The Digimon heroes were shocked at what they heard, making Veemon ask. "Virus? Made from us? How?"
"Long ago, while you were just Digi-Eggs there was a virus hidden in each and every one of you. Gennai knews the dangers and asked me, the Sovereigns and the Celestial Digimon for assistance. We managed to drain the virus from each and every last of you and then sealed it away. But somehow they are now free again." Ophanimon explained.
"So who are we up against?" Asked Dorulumon.
"You're up against 20 Black Digimon." Seraphimon replied. "Agumon, Gabumon, Veemon, Gatomon, Patamon, Renamon, Impmon, Gomamon, Shoutmon, Dorulumon, Gumdramon, Ballisatmon, Gomamon, Leomon, Tentomon, Wormmon, Gaomon and their leader... BlackGuilmon."
"Black version of Guilmon leader?" Guilmon asked, shocked to hear that, in which Azulongmon nodded in reply and said. "Yes because he is the most powerful of them all."
"I am not surprised. Guilmon is a Virus type Digimon so it should be stronger." Gabumon replied, which caused Impmon to then state. "Oh, so it's his fault."
"Guilmon's fault? How can it Guilmon's fault!?" Guilmon snapped at Impmon, who then replied, pointing over to Wormon as he spoke."
"Well, other than me and shrimpy, you're the one who is a Virus type who cannot control his darker side." Impmon replied, pointing over to Wormon. "And besides, you shouldn't be here anyway. You're too young and immature to be in this sort of thing!"
"Hey! That was mean!" Veemon snapped at Impmon, before defending his best friend. "Wormon is stronger than you know!"
"We heard he has saved many lives, unlike you." Agumon said, before Patamon added. "You tried to betray your friends in the past so it's your fault that there's a BlackImpmon to begin with!"
"Do you mind? I wasn't talking to you!" Impmon shouted.
"Well we don't like what you're saying!" Patamon snarled.
"You take that back on everything you said on Guilmon!" Tentamon shouted, sticking by his friend's side, which made Impmon ask in an angered tone. "Yeah? Why don't you make me!?"
With all the tension, Guilmon clenched his fist, before he was unable to take anymore and snapped."Impmon stop being mean to Guilmon! Guilmon had it with Impmon mean every time!"
As Guilmon and Impmon snarled at each other, it was Leomon who stopped the agreement.
"That's enough! All of you! Impmon, it's not Guilmon's fault that BlackGuilmon is the strongest of all Black Digimon. But Guilmon is a bit young for this sort of thing... but with proper training, he will be able to conquer whatever darkness confronts him."
The tension was replaced with curiosity, making Guilmon ask. "Training?"
"Yeah. I can assist you Guilmon. While Azulongmon and the others are dealing with those Black Digimon, we can take Guilmon to the Spirit Room and give him some proper training, make him more mature, more adult. A day in there is a year gone by. Give us ten days and then he'll be ready." said Piximon.
"The Spirit Room... a room where you can a year's training in a couple of days. Yes... that may be a good idea." Azulongmon thought a loud, before asking. "Leomon, Piximon, can you do it before we face the Black Digimon's stronghold?"
"We'll be done in seconds. By the time, he's finished, he'll be a new mon" Piximon replied.
"Guilmon gonna train with you two?" Guilmon asked curiously.
"Yes. We'll also teach you how to speak in proper language instead of third person and to teach you how to be more mature and smarter than you were, which may change your personality." Leomon told Guilmon, before the red dragon Digimon had to ask. "My training regime is gonna be the toughest thing you ever done. You can handle it?"
Guilmon nodded in reply and then said, determined. "Guilmon do his best."
"Good. We'll see you guys soon. Come on, Guilmon." Piximon said as he and Leomon walked off.
"Get stronger, Guilmon! And show us how much you matured in 10 days." Marcus' Agumon called out enthusiastically.
"Ok." Guilmon said in reply before he followed Piximon and Leomon.
"Guilmon's already strong how he is." Impmon had to admit, only to then ask himself. "But how strong will he be when he comes out there?"
"Back on topic." Shoutmon said, turning to Azulongmon, before asking. "You said they could control female Digimon right?"
"Yes which why I told them to stay behind." Azulongmon said. "Even the Black versions of Gatomon and Renamon are just their puppets."
"That's horrible." Gomamon stated.
Ophanimon nodded in agreement, before she spoke. "Anyway, Black Island is where we can find them, while File Island will be our base. It will take two days to get there, but by then we all should be ready for them."
"Right. We'll kick their Dark butts!" Gumdramon announced, slamming his fist into his hand.
"It would be tricky because without Mikey because we need him to Digifuse." Shoutmon admitted.
"And it's the same for the rest of us. Without our friends, we cannot Digivolve in any form. But if Impmon can do it, we have to find the source of power to do it ourselves." Gaomon said, trying to boost their morale.
"The question is how?" Patamon had to ask.
"We'll find out later." DATS Agumon replied, knowing that after everything he and Marcus went through to gain their strength had happened to his friends in similar circumstances.
"Anyway, we should get going" Agumon then said. "The longer we wait, the more terrible plans they can come up with."
"Agreed. Let's get over there right now and trashed them!" Marcus' Agumon replied, determined to fight.
"Agreed. Let's us go. To the ship!" Azulongmon called, showing them to a battle ship, the source of their transport to the location of their evil counterparts.
-Elsewhere-
Entering a small chamber where Myotismon's castle once stood proudly, now emptied of his evil, Leomon, Piximon and Guilmon entered, leaving Guilmon speechless and surprised upon entering a room to see it was completely white and contained a small fridge, two beds, a shower, lots of weights, a shelve with books and a huge rock.
"In here, we can gets many years of training, while outside only days will pass. And the gravity is one hundred times more than the Digital World's normal gravity." Piximon explained, making Guilmon say in reply. "Piximon's not kidding."
"Guilmon, we're gonna waste time eyes gazing. We have to start training right away." Leomon interrupted, in which Guilmon looked at Leomon and nodded.
And so, while the others began their long journey to Dark Island, Guilmon's training under Leomon and Piximon began.