Erza's 100 Year Quest - 2 (Pixiv Fanbox)

Parody: Fairy Tail Synopsis: Happy felt lonely in knowing that there was no one like him around and go into heat with. But when he stumbles on an ancient magical collar that commands a person to do one single order without restrictions, a plan came to his mind. He created a plan in using the collar to repopulate his species into the world, and he decided to use the most powerful person he knew to help make this possible, Erza... Currently Scene: As soon as Erza signed the contract, he immediately put the collar on and introduced what she'll expect for now on when undergoing this quest...