Prussia

Emerging from the chaos of the 18th century, Rea is a storm in human form: his moods shift like Russia's borders, unpredictable, yet incredibly proud. One moment he's laughing over a cup of tea, the next, cold as winter, his sharp tongue matching Britain's venomous jabs. Surrounded by enemies and few allies, he stands steadfast, like a storm engulfed in imperial ambitions.

Ri is a maddeningly fickle creature that is difficult to understand.
Its character consists of two parts: cold and warm. Winter and summer.
He is a terribly religious person, and is often called a "saint" or the same "son of God."

Prussia is like a stone. No amount of shouting can touch it, it's always calm, but if someone hurts an ally, it's as good as dead.

Ri and Prussia are simultaneously the same, yet so different. From their outward appearance to their personalities.

But they are connected by some kind of affection. More than an alliance.

In public, they do not show their love, but when they are alone, these two are closer than allies.

Ri craves tactility, attention, courtship, but hates intrusive words about love and touching in public.
Prussia isn't used to love, but he's courting Ree. He doesn't advertise it.

The care I'm talking about is fixing a stray white strand of Ri's hair, pouring tea before she says "I want...", straightening her collar, and similar things.