About this AUEdit
Spawning from fanart, this AU places the Big Four, and other such characters in the fandom, as characters from Spirited Away.
The Big FourEdit
For the Hijack pairing, he's cast a male version of Chihiro. He could be portrayed as Haku with Toothless as his dragon form, much like in Beauty and the Beast AU when Hiccup is placed as the prince while his dragon serves as his beast self. He can even be cast as a male version of Lin, the bathhouse worker that helps the young, trapped human.
Fans have most commonly cast Jack as the homeless river spirit, Haku as he helps a young human survive the witch of the bathhouse (for spirits) clutches until he could return the Ogino family home. Jack is also portrayed as the lonely masked monster/spirit No Face. Being a spirit himself also means that he can be one of the spirits that "baths" at the bathhouse.
Rapunzel is portrayed as Chihiro Ogino (also known as Sen when the witch changed her name), as she works for Gothel (as Yubaba) so she wouldn't turn her into a pig and until Gothel's apprentice comes back to set her free. She is sometimes portrayed as a female Haku for the Meripunzel pairing.
Hiro can be cast as a male Chihiro, with Baymax or Yokai as the lonely monster/spirit No-Face and Mochi as Yubaba's baby son, Bou in mouse/animal form.
When Hiro is placed as a male version of Chihiro, Baymax is cast between the lonely monster/spirit that takes a shine to the young human, No-Face and as Bou, Yubaba's baby son in his mouse/animal form.
Because of his mask and dark clothing, as well as his character being named after a Japanese spirit, he is placed as No-Face.
Young Gothel is cast as Yubaba, the Witch that owns the Bathhouse, while old Gothel plays her twin (kinder) sister, Zeniba (also known as Granny to Chihiro). As Gothel held power over Rapunzel, much like Yubaba's hold on Haku and Chihiro (as Rapunzel is cast between the two characters).
North is the six armed boiler man, Kamaji. As he helps the witch's apprentice and gets one of the bathhouse workers (that brings him and his little workers food) to keep a young human child safe in their world. His Elves can serve as the smell, soot creatures; that help him to feed the boiler's flames while he makes herbal remedies for the bathes.
When Jack is cast as Haku, Jamie is portrayed as a male, younger Chihiro. As both characters befriended spirits and helped them when they were in danger.