Hmm... what happens when Amazons is in AoT?

(Y/N) Kamado is the adopted and eldest son of the Kamado family when two brothers returning home from work but however they were attacked by the demon kills their family expects for Nezuko. But Nezuko turns into demon and spare by Demon Slayer Corp Pillar Water Giyu. But they were second encounter by the second monster and meeting with Kivat the 3rd. Forms the contract with him becoming Kamen Rider Kiva! Now it's up to (Y/N) and Tanjiro to find a way to turns back their younger sister into human back again and defend from any of the treats from Fangire and Demon now it's his turn to protect the humanity! WAKE UP!!!

Sixteen students. Trapped within confinement of one of the world's most prestigious schools for the rest of their lives. And the only way to "graduate"...is to kill a classmate and get away with it. One of those sixteen students is you, of course. How will you, the Super High School Level Runner, adjust to living with fifteen other students, in the confinement of Hope's Peak? EDIT & ADVANCED NOTICE: This may or may not be a jumble of crossovers that all focus on the reader and only the reader, if you catch my drift.

Toni was the adopted brother of Issei Hyoudo who has a huge hatred at him for no reason He gets bullied at School by everyone and he gets the saying he's the one being bullying people And no one believes him He had a crush on the cutest girl in school but when the moment his so called "Brother" knew he had a crush on her he took her like she's an item Everyone thought he was just a nobody but he's actually the owner of Stark Industries who makes powerful weapons Once he was out for a business trip an incident happened as a weapon made from him blew up in his face He was kidnapped by terrorist and his heart was badly damaged as he was forced to make weapons for the terrorist or he dies Any normal person would just give up but not Toni, He started to make something, He made himself of tougher stuff He was made of IRON

Y/n was considered many things by different people one day he inherited Incuriso in abandoned church and even since then his life was been upside down