Becoming Hasekura-senpai
Hime-chan realizes that Hasekura must be thinking that he confessed his love to her sister Aiko for real the day before! Also it must have been a shock to him to see Aiko running away. Daichi comes by and does what Hime-chan asked him to do, try to pick up Aiko, so Himeko (transformed into Hasekura) could heroically save her, and make a new confession to the real Aiko on senpai's behalf.
Aired 16/10/1992EP 3 - Becoming Hasekura-senpai
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)