You've known Chuuya your entire life. You were practically raised with him. You are a prince/princess, while he is a maid's child. Both of you were raised in the castle, but under very different circumstances. Though nothing could stop you from being close.

One day you were in the hallways, running away from your mother. She always wanted you to be 'proper' and 'feminine', while you hated the rules she made you oblige.

Then you saw Chuuya, wearing a long maid dress, while strolling down the hall. You ran to her, grabbing her hands and whispering "Please, don't kill me for what I'm about to do" and slipped under his dress to hide.

"What the actual-" you heard Chuuya mutter.