An angel, wishing to understand humans more fully, accidentally becomes one herself in an attempt to intervene in a suicide attempt.

This is the same story of orange marmalade with same characters, only with elves instead of vampires. After the human-elf war many years ago, there is a peace treaty signed between the two races, and also that the elves must not use their powers in front of the public and coexist with the humans. But they are still discriminated and feared by the humans. The protagonist, Bank Ma ri, falls in love with a human named, Jung Jaemin who is the most popular guy in her school, but hates the elves.