This was my favorite part in the anime, and what cemented both my love for the story and for the Nina/Sett ship.
We'll see how it goes once I get more into the full series, but right now, if this is a story about destiny/fate, Sett really feels like the endgame. Even the fact that the only creature in the world that he loves, his bird Niena, shares her true name - which leads to Sett calling her by the name she'd thought she'd lost forever.
A lot of big stuff happens in this volume. Sett going down the cliffside to track down and rescue Nina, and being badly clawed by a tiger in the process. Agreeing to take in the orphaned tiger cub simply because Nina begs him to. Calling her by her real name (which he thinks is a "childhood name") when she asks him to pretend, for a while, that he likes her, so he can see if it can turn into true feelings. Spending a night in bed together - simply talking and getting to know each other a little more, with Nina curling up against him in the night. Rescuing her from his brothers when the king makes Nina - her marriage, her body, her future child - the bargaining chip to the throne.
Sett actually doesn't particularly care about the throne; he isn't that into power, but the battlefield seems to be the only place he belongs. I'm not sure where he got his military training, since up until the age of 9, he was hidden away in a remote, freezing temple, with only wild birds as his friends, but by age 12, he was leading troops and coming out of battles unscathed. He was reckless because he didn't care whether he lived or died. But he never seemed to be able to die.
It's Nina who starts breaking through that empty shell by telling him that she doesn't believe in fate. She's made her own choices. He can choose his path, too. And Sett...starts to think about it.
Azure got a humanizing backstory, which led to the kiss on the balcony and Nina deciding that she'd do anything to protect him and the kingdom. This volume is Sett's backstory, which is...way worse. It explains so very much of who he is and how he relates to the world, and why he's empty and emotionless and doesn't care about anyone. He's not actually that cruel. He just...doesn't see people as people, really, because he's shut off all the human parts of himself.
Nina refuses to learn about his past unless it's directly from him, and Sett, to his surprise, not only tells her about the temple of blood, but takes her to see it. He tells her about his mother, who was a priestess who'd been shamed by her affair with the king, and hid her child away. He tells her about the priest who'd been obsessively in love with his mother, and who sometimes treated him well for her sake, and sometimes beat and cut and starved him because he had too much of his father's blood.
He's shocked when Nina cries, when she throws her arms around him, when she promises that she'll spend the rest of her life finding ways to make him happy. Because she understands now - which Sett does not - that he'd buried his heart in these temple grounds, locking away all of his emotions to protect himself.
And Sett, for the first time, sees the world through Nina's eyes...and discovers that this remote, freezing, abandoned temple, buried in all this snow, is beautiful.
It is such a perfect scene and it was built up to so wonderfully.