A story of a princess and her upcoming marriage to a prince from another kingdom. What will become of them?

From Tokyopop:
In this collection of cute shojo stories, Ryu-Sang is a tough boy who gets in fights and--although he doesn't want to admit it--cares for the girl he's supposed to protect.

Story 3: Myo-Un, an orphan girl with no memories of her past. Tells the story on how she came to understand the bad mannered boy Ryu-Sang to which became her first friend in the temple.
Story 4: Ryu-Sang, a mean and blunt orphan boy. Although he hates and treats Myo-un badly, he protects her!?
Story 5: Aru is a child who just lost her father, the story on her journey to the temple while being accompanied by big brother Ryu-Sang and older sister Myo-Un.

Note: Myo-Un and Ryu-Sang are both the protagonist in the series Nabi, one of the author’s ongoing series at the moment.

Auna is a girl forced into servitude to a petulant princess who presents her with a furry fox cub. Soon afterwards, Auna embarks upon the adventure of a lifetime when she learns that fox is really an adventurous boy trapped by a magical spell! Before she knows it, the pistol-packing teen and her unlikely ally journey into a fantasy realm unlike anything you've ever seen!

From JanimeS:

The series begins as a guest visits a temple where Myo-Un and Ryu-Sang are living along with many other orphan children. This guest turns out to be an assassin who came to kill a certain someone who is the last child of a powerful family in Su country. The assassin's employer, who remains anonymous, wants to clean up every root of possible problems.

The assassin calls for reinforcements and attacks the lady of the temple, revealing that the lady of the temple is also another last descendent of another powerful family that was drawn out of Su country. Myo-Un, Ryu-Sang, and others are forced to flee the temple.

Thus, Myo-Un & Ryu-Sang's journey begins, and the assassin is still after them.

Note: Nabi: The Prototype is divided into six stories. Stories three to six features Myo-un and Ryu-Sang days in the temple before the story in Nabi began.

From Tokyopop:
Class rivals June and Lucia vie for the honor of being named the Queen of Light, entrusted with protecting the people from the King of Darkness. June is an attractive girl whose feisty, hot temper and general laziness may prevent her from receiving the crown. Lucia has a more regal quality and a strong desire to match, but she is always overshadowed by June. Will petty jealousies, love triangles, and one cute boy interfere with the Queen's royal duty?!

Volume 1:
1) Days Wishes Fall by YUN Ji Woon
About the relationship between a father and a daughter.
2) The Door by KIM Yeon-Joo
The reminisces of a girl in the temporary care of a lord apparent.
3) The Ravages of the Tiger by SEO MOON Da Mi
A girl seeks revenge and death through hunting a tiger.
4) The Night has a Thousand Eyes by LEE Hyeon-Sook
The relationship between a boy, his girlfriend, and her cousin.
5) I Hate You, Dad ♥ by LEE Si Young
6) The Road the Dead Pass By by PARK Eun-Ah

Volume 2: "Boy's Love"
1) 달밤은 위험천만! SHIM Hye-Jin
2) Get Real Na Yeri
3) To Be Born In an Endless Night LEE Hyeon-Sook
4) jardin de chouette 올빼미의 정원 Kang Hye-Jin
5) But... by LEE Si Young
6) Lunch SHIN Yoo Ha (신유하)
7) Sanctuary by RHIM Ju-Yeon

Volume 3: "Antiq + Sad"
1) Moon Palace [월궁 (月宮)] by YUN Ji Woon
2) by Kang Hye-Jin (강혜진)
3) And... by LEE Si Young
(Shounen Ai)
4) Sorrow [哀 (슬플애)] by Park Ki-Hong & KIM Seon Hee
7) Hijo de la Luna by SHIN Ji-Sang and Geo
A noble man recalls the tragic story of a boy born out of wedlock and the supposed curse upon him because of his white eye. The cursed boy lives a harsh life and falls in love with someone forbidden to him. In the end the beast kills the one he cared most about.

Volume 4: "Older"
1) Shepherds by Kwon Gyo-jung
2) Bride by Aivan
3) (황금나선의 경로) by YOO Shi Jin
4) Sweet & Sweet (달콤하고 달콤하도다) by KIM Se-Young
5) (너는 나의 달빛) by LEE Si Young
6) 1000 Years in Your Eyes] (천년도 당신 눈에는) by RHIM Ju-Yeon