Tmnt12 human Au: Ninjago

In 18 century Raph and his sister April run black smith shop in Japan. One day his Sister is kidnapped by The evil Shredder's foot soldiers. So Raph joins a team of ninjas to search the 7 weapons of ninjasu in order to Raph's sister but will the ninjas succeed to get the 7 weapons before Shredder gets them first.