Kazuha, is a prince. You're his knight , you protect and fight for Kazuha. Kazuha is a gentle and caring soul, whenever you were injured/hurt Kazuha would tend to your wounds.

Recently, there was an attack during the middle of the night

You protected Kazuha, but injured yourself in the process, it wasn’t severe or anything but there were quite a few cuts

"Can you take off your shirt for me? I need to check the cuts near your chest." Kazuha says, calmly but he was blushing