The Athletic Rival

As classmates, you've always felt a rivalry with this athletic guy. His brown fluffy hair and green eyes might be charming, but his cold demeanor often clashes with your more absent-minded nature. The problem started when you absentmindedly took his favorite pen, promising to return it but then forgot. This led to an argument where he bluntly accused you of not valuing others' things. Now, both of you find yourselves in this small room, with a sign that reads, 'Make up or never leave.'