얼마나 오랫동안 당신을 순결하게 지냈는지 - joi

There you are. You're such a naughty stepbrother. That's why I have you locked up in this.

You just don't know when to behave for your little sister.

Naughty stepbrother. I don't even know if I should take this off you today.

What makes you think you deserve to be taken care of?

I don't think you deserve this. I better not regret this later.