Hasekura-senpai! Youthful Travels
Aiko is upset because Hasekura had an exchange student program and the exam was coming up on Sunday. He had a chance to go to America for a half year, and it had always been his dream to go study abroad. Hime-chan turned herself into Aiko and called Hasekura. Hime-chan said that she just wanted to wish him well, and also to do a good luck charm.
Aired 11/06/1993EP 36 - Hasekura-senpai! Youthful Travels
Hime-chan no Ribbon
Erika, the princess of the Magic Kingdom has come to Earth in order to find a human girl who looks just like her. That girl turns out to be Himeko Nonohara, a tomboy's tomboy. Erika must give Himeko a magical item she has created in order to prove her worth as a successor to the crown. Himeko must test this item, a hair ribbon that allows her to transform into any other person she sees, to see if it is worthy. The series follows Himeko's adventures and her budding romance with Daichi, the boy who discovers her secret.
(Source: Anime News Network)