Kusanagi, Mizuho

After a friend betrays them, Yona and Riri arrive in the foreign land of Sei where they are forced to work as slaves. Hak and the Four Dragons divide up into two groups to sneak into the enemy nation in order to rescue Yona and Riri.

When Sinha stumbles upon a stone statue of a dragon in the forest, the statue's mouth clamps down on Ao and Sinha races to slice it open. In doing so, he accidentally releases an evil spirit and Yona and her friends will have to face the consequences. Meanwhile, Yona begins to realize how much Hak means to her.

Yona and the others leave Water Tribe lands where they meet a boy from an Earth Tribe. When they cross the Water Tribe's border to return the boy home, one of the Dragon Warriors collapses, revealing a truth behind the Dragons.

Villainous drug trafficker Hyo unleashes a fleet of warships from South Kai on Sensui, attacking Princess Riri's people. Yona and her friends--including all four assembled Dragon Warriors--must find a way to stop Hyo, even when Yona injures him and he vows revenge.

Yona and Riri, the daughter of the Water Tribe chief, continue their dangerous and uphill fight against the drug nadai that plagues the Water Tribe territory.

Princess Yona and her friends learn the shocking truth about Zeno's past when he survives being fatally struck by a Kai Empire soldier. His body heals itself, even when his head is cut off. The shocking reality that Zeno is the Yellow Dragon and cannot die leads to a deeper understanding of the Crimson Dragon King.

Yona arrives in the Water Tribe's territory which is beautiful but plagued by a drug called "nadai." When one of Yona's friends becomes affected by the drug, she must decide how far she will go to help him.

"Princess Yona lives an ideal life as the only princess of her kingdom. Doted on by her father, the king, and protected by her faithful guard Hak, she cherishes the time spent with the man she loves, Soo-won. But everything changes on her 16th birthday when she witnesses her father's murder! 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?"--.

"Kang Su-jin, chief of the Fire Tribe, has been plotting to become the ruler of the Kingdom of Kohka--and now he's started an uprising by attacking Su-won at Hiryuu Palace! With stakes high as the armies clash on the battlefield, will Yona and her friends join the fray?"--Back cover.

"Yona returns to her homeland when the Hazara Clan, a powerful family in the nation of Kai, invades the Kingdom of Kohka! How will the Fire Tribe defend against this audacious attack, and what will Yona resort to in order to protect Saika?!"--Back cover.