Princess Dong-Young is kidnapped by the powerful demon, Se-In. With the help of B-Wal, Doh-Hyun the Black Turtle attempts to rescue the princess. Just when you think it can't get any worse, Ryung enters the scene out of nowhere... and more secrets are revealed about the characters' hidden pasts!

With the help of the demon Se-In, Ryung plots to kidnap Dong-Young the princess of heaven. As always Bi-Wal stands in his way, but does he now have some kind of ulterior motive? What is the secret shared by Bi-Wal and Ryung? What happens to the princess when this mystery unravels?

The only Angel Princess of Heaven is betrothed to the Emperor of the Underworld. Unable to accept her future with the Demon King, she realizes that her only choice is to run away. Her plan is to join the human world disguised as a schoolboy! Now all of the Gods from Heaven and Hell are searching high and low on the earth trying to make sure that a wedding happens.

Dong-Young is well on her way to becoming the Queen of Heaven, and she and Bi-Wal are now married to boot! But what about the people who helped the two get here? The stories of Bi-Wal's right-hand man, Hee-Young; Ah-Hin, the White Tiger; and Ee-Jung, the Red Phoenix, share the spotlight in this final volume of Angel Diary!

With the confrontation between Hell's siblings past its climax, Dong-Young uses her Winter General powers to salve Ryung Jin's heart, providing him with a means to save Se-In...in a manner of speaking. And that's not the only surprise the princess of Heaven has up her sleeve as she announces her royal aspirations to the world in this exciting installment of Angel Diary!

Hoping to clear the air between Shin and Chae-Kyung, the ladies of the court pressure the young couple to get more intimate. But even a night together may not be enough to push the two close. Amid lingering suspicions of Shin's involvement with Hyo-Rin, Yul takes the offensive in claiming not only his right to the throne, but to Chae-Kyung's heart as well...Will her commitment to her husband and her duty as crown princess prevail?

The runaway angel princess and the four guardians of Heaven - who are in search of her in the human world - are on a field trip. But the princess, who is still disguised as a school boy, is plagued with more troubles as always. Will the guardians be able to save her from all the trouble?! Also, the secret past of beautiful Ah-Hin and powerful Woo-Hyun is about to be revealed. What will be waiting for them after the trip? This ridiculously funny and charming fantasy will draw you right into their world.

Mi-Hyang - Bi-Wol's fiancee who has a serious crush on him - also comes to the human world determined to get rid of the angel princess. Assuming Ah-Hin is the princess, she tracks her down, only to capture Dong-Young by coincidence. But who knew that Dong-Young was the real princess?! With her secret identity revealed, will Dong-Young be able to escape from this pinch?!

A fight between the members of the four guardians of Heaven breaks out as Woo-Hyun battles to win Ah-Hin's heart! As more characters from heaven and hell come to the human world to search for our runaway angel princess, Dong-Young is feeling more pressured. Her mysterious classmate, Bi-Wal, turns out to have a fiance who also came to the human world to find the Angel princess of Heaven. Will Dong-Young finally get caught?