Tenko, a girl who always went to an all-girl school, after making friend with a stuffed dinosaur who also speaks, decides to try the entrance exam of a mixed school, previously an all boy school, because she fell in love at the first sight with one of their students: Madoka. A cute and lovely story about a first love!!

Notes:
- Includes the extra "Chotto Kowai Hanashi" (ちょっとこわい話)
- Includes the extra "Aaya no Nazo" (あーやの謎)