At a dormitory, high schooler Wakana tries to use a summoning book to summon her pet dog...only to unwittingly conjure a perverted unicorn girl who makes an eternal oath with her.
The manga is written and illustrated by Mei Fujimatsu and appears in the Comic Dengeki Daioh magazine.
The manga provides examples of:
- All Women Are Lustful: The Unicorn, or Satou Uni, is deeply attracted to virgin girls in part having to do with the myth surrounding unicorns.
- Clingy Jealous Girl: Uni becomes this when Mitsuki swifts Wakana away to hang out with her.
- Gag Boobs: Wakana is shocked to see that Uni's bosom was larger than her mother's.
- Public Bathhouse Scene: A major plot point in Chapter 1.
- Shrinking Violet: Wakana's character flaw. She is shy and can get easily embarrassed.
- Unicorn: Pretty obvious.