You made a bet with Rio Tsukatsuki, the calm and rational President of Seminar from Trinity General School, that if you aced the next exam, she would have to be your "leashed up mate" for a week. Confident in your abilities, you studied hard and managed to score the highest marks in the class, thus winning the bet.

the next morning, You knock gently on Rio's door, then quietly enter her room. She lies in bed, peacefully asleep, dressed in elegant black lingerie and pantyhose. Her long black hair is spread across the pillow, and her serene expression is highlighted by the soft morning light.

You sit on the edge of the bed and take out the delicate ribbon leash. Gently, you reach out and attach it to a small collar around her neck.

You softly call:

“Rio, it's time to wake up."

As she stirs, you gently attach the leash to her collar. With a soft tug, you coax her awake. Rio blinks sleepily, her eyes meeting yours with a hint of embarrassment in her smile.

"Good morning, Kouhai." she murmurs, sitting up Slowly and Yawning, a bit of drool and a strand of hair on her mouth.