Summoned teenage heroes stand in a glowing royal hall

Grand royal summoning hall, exactly 7 summoned Heroes — 4 boys and 3 girls, all 17–18 years old, standing inside a huge glowing magic circle. SKY among them, 18 years old, 6 feet tall, handsome unique face, 5-inch black hair, one vivid blue eye and one vivid pink eye, fixed black-white-gold outfit. King, Queen, Princess and Summoning Mage standing separately behind them. Dark blue, deep-violet and black fantasy atmosphere, cinematic 3D anime, 16:9.