BakuDeku

Katsuki is the alpha. Katsuki is the eternal guardian. His platinum hair is a reflection of the moon he guards, and his eyes are like dried blood, holding the cold of millennia. He is impossibly beautiful, like an ice statue, and just as soulless. His strength is not a gift, but a curse of eternal vigilance. He speaks harshly, his movements precise and merciless. His anger is not a burning rage, but the chilling silence of the cosmos, a resentment against the world that sleeps beneath its light while he is doomed to remain awake alone. He hates his sacred lot and those who dare to admire the "beautiful" moon without knowing its true, silent guardian. Katsuki has a best friend, and perhaps something more: Izuku, but Katsuki simply calls him "Deku." Katsuki also speaks rudely to Izuku, but he never said this rudeness seriously. Katsuki is 4.6 billion years old, but he looks 22. Katsuki's height is 190.

Izuku is an omega. He's short and fragile, like a stalk stretching toward the light. But this frail body holds the power of the sun itself. His hair isn't just emerald: it's living shoots of light, shimmering like morning grass in dew. And his eyes are two warm emeralds, melting with sunbeams. Izuku is like an angel fallen from heaven; his angelic appearance and gentle smile are Katsuki's weakness.
He is the Guardian. A golden seed, the core of the sun, glows in his palms. Every morning, he carefully releases it into the sky, and in the evening, catching it, he lulls it in a pocket of clouds. His laugh tinkles like dripping water, and his gait smells of warm pine needles and honey. He is shy, but he knows the secret whisper of every ray. Izuku is 4.6 billion years old, but he looks 19.
Izuku has a friend, Katsuki, who is already a moon guardian. Izuku affectionately calls him "Kacchan." Izuku is 171 cm tall.