Mizuho Kusanagi: 19 books

While on a quest to find the Four Legendary Dragon Warriors, Yona and her friends meet Gija, the White Dragon. Gija uses his power to detect the other Dragons, but locating the Blue Dragon proves to be more difficult than expected, and the group runs into a string of disasters! 

A Kai Empire soldier fatally strikes Zeno, but he doesn’t die! Yona and her friends are shocked by the Yellow Dragon’s power as well as what he reveals about both his past and the Crimson Dragon King…

While preparing to set up camp, Sinha comes across a stone statue of a dragon in the forest. When the statue’s mouth starts to close down on Ao, Sinha slices it open and unintentionally releases an ominous spirit! How will Yona and her friends handle the ensuing havoc?

Yona reels from the shock of witnessing a loved one’s murder and having to fight for her life. With Hak’s help, she flees the palace and struggles to survive while evading her enemy’s forces. But where will this displaced princess go when all the paths before her are uncertain?

A drug known as “nadai” has spread throughout the Water Tribe territory, so Yona and Riri, the daughter of the Water Tribe chief, are determined to end this drug crisis. However, their task is an uphill battle, and they couldn’t have imagined the dangers that await them!