These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Kail goes through the sickness and death of his father, the death of his favorite brother and the apparent death of Yuri at the hands of the Egyptians, the evil schemes of his stepmother, and generally works as hard as he can to end the wars and suffering spread throughout his homeland. And while he loves Yuri and wants her to stay with him, he still refuses to force her to stay, thinking that she ought to go back to her family and boyfriend in her own time.
Yuri, meanwhile, is kidnapped from her home, nearly murdered and raped multiple times, and quickly sees how corrupt and evil Nakia is. She responds by learning how to fight physically and mentally, going to war to protect the people of Hattusa, and vowing to see to it that Nakia pays for everything she has done.
Jerk Ass Woobie: Ursula is this, after revealing that she agreed to impersonate Yuri and ruin her reputation because after watching her family die of The Plague and suffering through poverty, she was desperate to know wealth for any amount of time. She then becomes Yuri's lady-in-waiting, and by the time she dies in an Heroic Sacrifice she has evolved into an Iron Woobie.
The Woobie: Poor Juda is a sweet kid who genuinely support's Kail's bid for the throne, because he thinks it's best for Hattusa. No matter how hard he tries to help out with looking after his home, and no matter how much he makes it clear that he is not interested in being king, his mother continues to kill and plot evil towards his half-brothers and Yuri, while he tries to stop her (at one point, he sadly confesses that he knows his mother is capable of poisoning his oldest half-brother, now the new king, as he goes to help Yuri foil the plan). And ultimately, his own mother brainwashes him, because he refuses to play along with her plotting.