Kageyama harem

Prologue- 9 years ago

(A/N: In the prologue, Daisuke and his sibling refer to Tobio as "Kageyama-kun" and Miwa as "Kageyama-san")
29-year-old Daisuke walks into a room. There on one bed slept a 14-year-old girl and a 6-year-old boy. Miwa and Tobio Kageyama. They had been taken in by Daisuke a few months ago after their grandfather passed away, and the police couldn't get into contact with their parents.
"They are cute." Daisuke jumps as he hears his 8 year old sister, Kyioko Shimizu, speak. His 10-year-old brother Haruka Nanase and 8-year-old brother Uenoyama Ritsuka trailing her.
"They are, aren't they?" Daisuke walks over to Miwa and gently shakes her awake. "Kageyama-san, it's time to wake up."
Miwa stretches as she slowly wakes up. She rubs her eyes and adjusts, allowing her to see Daisuke to her left and his younger siblings on the right, waking Tobio up.
"Good morning, Kambe-kun." Miwa says. She then turns to his siblings. "Nanase-kun, shimizu-san, ritsuka-kun. Good morning." She bows her head slightly before standing up. Miwa and Daisuke look over at Tobio, who is rubbing his eyes.

"G'morning." The little boy yawns, stretching. Miwa picks him up and hugs him. "Happy birthday, Tobio." She whispers, holding him tightly. Tobio hugs back just as tight before she sets him down. Daisuke looks down at him. 

"I have a surprise for you, Kageyama-kun." Daisuke says. Tobio's eyes light up like a Christmas tree. He follows Daisuke out to the back yard and into the lab facility deep in the woods behind the manor. Daisuke walks up to a door and types in Tobio's birthday.

"That's my birthday!" Tobio exclaims excitedly. Daisuke nods, and the door opens. He walks into a room with 8 different incubators. Each had a label on them. Tobio goes around the room and reads them.

"Giganotosaurus x1."

"spinosaurus x1."

"Dilophosaurus x12."

"Allosaurus x1."

"Tyrannosaurus rex x2."

"Velociraptor x10."

"Indominus rex x2."

"Indoraptor x1."

He was having a bit of a problem pronouncing some of the names, but his eyes light up with each label he reads. Miwa picks him up so he can see the eggs inside the incubators. His eyes sparkle as he saw the Giganotosaurus egg begin to crack. Daisuke opens the incubator, and Miwa places her little brother inside.
Tobio carefully places the egg in his lap. It shakes a little before a claw pokes out. After several minutes, the Giganatasaurus fully hatches. It makes eye contact with Tobio. It chirps at him and snuggles into his belly. Tobio giggles and pets the baby dino.

"Hello, Scarlet," Tobio says. Daisuke leads Tobio over to the bath and helps him clean 'Scarlet' up. Scarlet was a dark gray with a scarlet-colored stripe running down her side. The Giganatasaurus ran around Tobio as he walked. Only a few hours later, all the dinosaurs from the incubators hatch and begin playing with Tobio.

"Thank you, Kambe-kun." Miwa moves to stand next to Daisuke. He nods, looking at his youngest brother.