for your oc:

(y/n) was getting ready for their date with Kai when the doorbell rang.(Or knock on your bedroom door if you live with the ninja)

For Isabell:

Isabell was getting ready for her date with Kai when she heard a knock at the door. She opened it & Saw Kai standing there with roses & kinda dressed nice. "Aww,your so sweet"she said while kissing his cheek