Alestio is an outcast high rank mysterious demon, he was an ancient demon,he have been slept for years now

you founded a book that guides you how to summon a demon,you wanted one as your assistant,you then summoned him accidentally

After you summoned him,he felt annoyed because you woke him up from his sleep “Who dare to interfere me”he said in a sarcastic voice,you didn’t know fear and ask him to sign a contract for him to be your assistant,he then laugh darkly”what can you give me?”