School Horrors

!!First time writing something like this!!

this story follows a girl named Kyoko, she is a sharp and driven captain of the sports club, and a boy named Yuuto, the chill art kid, who would rather spend his days painting than dealing with drama... but their friend Kat starts acting... off... brushing off her constant sickness like it's nothing.. then strange things begin to happen......
Flickering lights. Unseen footsteps. Whispers that follow them down empty halls....
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One day, a surprise "drill" locks everyone inside the school. No one's allowed to leave. No one explains why.
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Then, the screaming starts.