I loved how this story had extra (Blink and you miss it) details.
When Kafei was turned into a child by Skull Kid, he was still going to see Anju, butthen Sakkon jumped him and stole his mask. That's what stopped him from seeing Anju. This happened before the 1st day, so it's set in stone and can't be prevented.
Sakkon tried to pawn off Kafei's mask, but the shop owner refused to buy it because he knew who owned that mask.
Mayor Dotour paid for the room behind the curiosity shop Kafei was living in.
Cremia also had feelings for Kafei (and his mother is supporting Romani Ranch), but she knew he loved Anju, so she let things be.
Anju's Father abandoned Anju and her mother.
If you helped Kafei get his mask back, but never informed Anju about him, Kafei will be the only in the room on the final night.