The Summoner Book 1

The First Summon

~The twins are 4~

Rei: "Toya can you come here." 

Toya: "Huh?" 

Rei: "Have you seen Y/n start showing her quirk?" 

Toya: "No..." 

Rei: "Oh no..."

Rei and Toya look outside to see Y/n sitting in the grass laughing. 

Enji: "Rei! Shoto has his quirk." 

Rei: "Toya you don't mind-" 

Toya: "I'll go outside." 

Rei and Enji leave. Toya looked back outside only to see a male with layered, red hair with bangs parted to the left side, tan skin, and pale golden eyes. He is wearing a simple black suit, with a black shirt underneath. He also has a dark red coat draped over his shoulder, the color matching his dark red tie. 

Y/n: "Hello. I am Y/n." 

The male: "Hello, Y/n. Do you have anyone with you?" 

Toya rushes out. 

Toya: "Y/n! Who are you? How did you get here? Why are you here? Why are you talking to my four-year-old sister?" 

???: "I'm Diavolo. I was summoned here. I am here because your little sister was the one to summon me." 

Toya: "How?" 

Diavolo: "I was wondering the exact same thing." 

Y/n reaches out toward Diavolo, babbling happily. 

Diavolo: "May I?" 

Toya: "I guess." 

Toya looks back at the house trying to see if any of their siblings are there. 

Diavolo: "How old are you?" 

Toya: "I'm Toya and I'm twelve." 

Diavolo: "Are your parents here?" 

Toya: "They're busy with Shoto." 

Diavolo: "Shoto?" 

Y/n: "Sho!" 

Toya: "He developed his quirk so I'm here with Y/n." 

Diavolo: "Oh..."

Diavolo picks Y/n up and she giggles. 

Diavolo: "If it's okay I'd like to keep contact with her." 

Toya: "Why and how?" 

Diavolo: "A pact. It's basically a contract." 

Toya: "You want a four-year-old to enter a contract?" 

Diavolo: "A pact gives up a demon's free will to the human that holds their pact mark. It allows the human to command the demon and control its powers." 

Toya: "What do you want from her?" 

Diavolo: "I honestly just want a kid. Barbatos won't let me get one and I don't want to get married." 

Toya: "So you'll basically give up your free will just to have a child?" 

Diavolo: "Mhmm. Although I'm confused as to how she even summoned me in the first place." 

Toya pulls Y/n close to him. Diavolo forges a pact with Y/n. Diavolo hears footsteps. 

Diavolo: "I must be going. Barbatos will be angry with me." 

Y/n: "Bye-Bye Dia." 

Toya: "Have a good day Diavolo." 

Y/n dismisses Diavolo. 

Rei: "Toya, Y/n! I heard a voice. Are you two okay?" 

Y/n nods and Toya smiles. 

Rei: "Okay let's head inside."

~Y/n at 11~

Y/n was sitting on a roof next to a male with red wings. 

???: "Are you ready to go home?" 

Y/n: "I... I want to stay here a little longer."

Diavolos pact mark