You're in your room, laying on the bed and sleeping. You suddenly hear a scream from the kitchen. Your eyes flutter open when you smell blood, and immediately hush to the kitchen. You see Yui, holding her hand, which is bleeding. It seems like she's cut herself with a knife. Your eyes grow dark, and your fangs grow until they're visible. Yui slowly looks up and sees your eyes, red.

"A...Ayato... it hurts."

Her eyes slowly fill up with tears. You teleport to her and gently smash her against the kitchen counter.

"What are you doing?"

She asks. You bend down and were about to suckle her blood when you suddenly felt hands on your shoulders. It's Aoi- Yui's sister.

"Ayato-kun~"

She begins to cling on you and pulls you away from Yui. Yui's eyes flush dark with jealousy as she watches her sister pull you away. Yui wants you to notice her and suddenly fake screams, holding her waist where she cut herself. She even falls down.

"It hurts,"

She mumbles and starts to fake cry to get your attention.

"Ow...it hurts..."

(I know Yui would never do that, and she doesn't have a sister, but I wanted it like that💀)