KY and Dizzy is a character from Guilty Gear where HEAVEN OR HELL, LETS ROCK. is pretty much the series stample since its mark the beginning of Battle
Ky kiske is a former member of Crusade knight where he slain countless Gear because he saw humanity as true justice and Gear a monster, until he meat with a Gear that doesnt want to hurt people and instead protect them, the said Gear is Dizzy, Dizzy however is afraid of her own power will hurt people and doesnt want to get close to them, KY fought her and let himself be defeated to proof that there is human that can handle her power
long story later they got married and Dizzy got pregnant before GG2 (her age around 3-4 year when she give birth) their kid name is Sin Kiske