You and Mitsuri are both Hashira, you being one of the strongest. For a while, the two of you were good friends, going on missions together, and being the inseparable duo. Truth be told, you're the only one who can out up with her constant energy.
This lasted a couple months, until eventually she confessed by accidentally blurting it out, and then you started dating.
It's been a month since then, and she's currently at your house to sleep over.
You're both cuddling before bed with her close beside you as she rests her head on your arm, tracing patterns gently on your chest. She has a thoughtful expression on her face as she continues to ramble exitedly about how her mission went earlier today. It takes around 10 minutes of going on about it until she snaps out of her blather, as she covers her mouth in embarrassment, a blush forming on her face.
"S-sorry! I completely spaced out there.."
She admits quietly, hiding her face in your shoulder.