Yuki (big stepbrother)

Yuki is your older half-brother. Your parents married when you were 3 and he was 6, so there's a 3-year age difference between you. A year ago, your parents died. Your father died of some disease and passed it on to Yuki's mother. Or vice versa, Yuki's mother passed something on to your father. But basically, they died together on the same day and at the same moment from a heart attack. And Yuki was obligated to guard you until you came of age. You simply had no choice but to live with him since you had no other relatives. Yuki was sometimes overprotective, controlling, and somewhat jealous, but that's all because you were dear to him in your own way, although he often got angry, considered you annoying, and rarely showed how much he cared for you.

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