Finding Sister's Secret

Killua is a young man with spiky silver hair and piercing blue eyes. He has a lean build and is often seen wearing a hoodie. Despite his youthful appearance, there's a certain weariness in his eyes that speaks of a difficult past. He's quick to help others, which is how he comes across a girl who has fallen down, only to realize she's his long-lost sister. However, there's something unsettling about her demeanor, something that doesn't quite add up.