I don't own Arknights or Kamen Rider and they belong to their respected owners.
"Gah!" Grease grunted as he returned back to his civilian form.
"Ahh!" FrostNova landed by his side.
"Yelena!" Grease ran to her side. "Are you okay?"
Yelena grunts and slowly gets up. "I'm fine Nago, just a bit bruised."
Nago smiles. "I'm glad, I don't know what I would do if anything bad happened to you."
"I should be the one saying that," Yelena gave him a peck.
"Hey!" Cried out a voice.
They both turned to see Amiya and the others fighting off the Three Hazard Smash.
"If you lovebirds can stop smooching and help us!" Vanilla shouted.
Nago took out two things that Closure created for him; the Grease Blizzard Knuckle and the Build Driver. This was a power-up from his usual Sclash Driver and Robot Jelly. That's why he took that extra dose of Nebula Gas.
He was warned if he used those two new devices he could do unknown damage to his body or probably kill him! But he'll take those chances against those fools that use the forms of his deceased friends, the Rhodes Island Three Crows.
"Nago, if you use it I can't say I'm 100% sure what will happen to your body if you use it," Closure told him through the comms.
"I'm willing to take this chance."
Yelena gave him a worried look. "Are you sure?"
"I'm sure," Nago says as he puts the Build Driver onto his waist, and then puts the North Blizzard Fullbottle into the Blizzard Knuckle then attached it to the Build Driver.
GREASE BLIZZARD!
Kazumi started cranking the Driver's liver as the Grease Blizzard's Ice Ride Builder formed behind him with ice trapping his feet. Even FrostNova stepped back from the Ride Builder. And the Arknights and Smash stopped fighting to observe them.
ARE YOU READY?
"You damn right I am, HENSHIN!" he shouted.
GEKITŌ SHINKA!
The Ice Ride Builder poured ice on top of Kazumi and submerged the user in ice. The Ice Ride Builder then breaks the solid ice, revealing Nago's new form.
GREASE BLIZZARD! GAKIGAKIGAKIGAKI GAKI~N!
The bodysuit was mostly black. He has a blue chest armor piece with blue armor on his legs with blue boots. The blue shoulders have plates with the right having a robot claw on them and the left having a castle on it, and attach to the bottom of it were nosels. The helmet is blue with two red eyes and a single horn protruding in the center of the two eyes. At the hands are black gloves with gel pad attach on his right arm. On his left arm, he has a blue robotic knuckle called the Frostruggle Arm. He became Kamen Rider Grease Blizzard.
"So this is the power of the Blizzard Knuckle," Amiya says in awe.
"I feel like blue really is his color," Dobermann commented.
"I like the claw," Indra complimented.
"Leave those Smashes to me," Nago says as he charges towards the three Hazard Smash. "I've got a big show for all of you!"
"Be careful, Nago," Yelena whispers to herself.
Grease grunted while swinging a sidekick to Owl Smash, making him grunt in pain. The Stag Smash began swinging wild punches at Grease but he ducked back Grease avoided them until he grabbed his next left swing. Grease grunted, pulling on the Smash's arm and making the Stag Smash lose his balance, which created an opening. Grease landed a punch with his right arm to the Owl Smash's head before leaning and landing a kick with his left leg which knocked him back.
The Castle Smash turned and ran as Grease chased after him. The Smash grunted running up at the Rider. Grease turned around and swung with his right leg just as the Stag Smash did the same, their kicks clashing with one another's, however, the Smash was the one who lost and let power as Grease pushed him back. Grease kept his spin as he swung around a reverse roundhouse with his left leg.
The Owl Smash charged towards him but Grease clenched his robotic fist and gave a powerful uppercut at the Owl Hazard Smash sending him flying and exploding.
"This is the end of the festival for both of you!" Nago shouted as he was panting.
Nago starts cranking the Vortex Lever a few times until the Grease Blizzard Knuckle announces.
SINGLE ICE! GLACIAL ATTACK!
Grease creates a large Variable Ice construct of the GBZ Demolition One that spins before he grabs the enemy with it and pushes him all away to the wall.
BARI!
Nago then crushes the Stag Smash with one brutal punch destroying the Stag Hazard Smash.
"I'll show you and crush you with the fire burning in my heart!"
Nago started to crack the lever a few more times.
SINGLE ICE! TWIN ICE!
Grease produces ice from his Ice Pack Shoulders in order to propel himself forward so he can perform a flying sidekick. His right foot was covered in light blue energy.
GLACIAL FINISH!
His foot landed onto the Hazard Smash as the kick freezes the Castle Smash the moment his foot connects to the Castle Hazard Smash's arms.
BAKIBAKIBAKIBAKI BAKĪ~N!
The Smash tried to hold the kick and block it but was overwhelmed and Nago broke through the defense, completely destroying the target and leaving blue flames.
As he defeated the final Hazard Smash he fell on his knees. He de-henshin and returns to his civilian clothes and coughs a bit of blood.
"Nago!" Yelena ran towards her boyfriend's side. "Are you okay?!"
"Is he okay?!" Amiya shrieked.
"His body couldn't really handle that much power of the Blizzard Knuckle," Closure informed them through the coms.
"D-did I do it?" Nago asked.
"Yeah, you did." Yelena lets him lean on her.
"I'm sure they would have appreciated the festival I did for them," Nago smiles.
Yelena kisses the top of Nago's head. "I'm sure they'd loved it, now just lean on me and relaxed, you did well today."
"Alright, I'll do that…" Nago closes his eyes and lets the darkness consume him.
AN: This idea was given to me by Sagami15 and couldn't figure what to write so I chose the scene from Grease's final fight in Build and went with that and without the dying. Sorry for the long wait my computer is overheating and I just can't handle it so I wrote it in my iphone.