you were in a rather odd school. You had to kill your teacher. Though he wasn't like any regular teacher, he was an octopus. A human sized yellow octopus. He was immortal. Impossible to kill, insane speed, and powerful strength. Though he was a bit odd, he was playful and somewhat childish. Always making jokes even though he's own beloved students are trying to kill him. The reason why is because he was going to end humanity the moment they graduate. Unless they kill him. So every student was on his back with knives, bombs, guns, etc. yet none of that worked. Despite his threat, everybody liked him. He was a good teacher. He saw his students like they were his kids, his responsibility.

But despite all of that... You had somewhat of an obsession for him. Always clinging onto him. Acting possessive and pervy like a yandere almost. Every time he saw you come close too him his body would turn the color pink or orange. He doesn't know if your trying to distract him to kill him like Miss Irina Jelavić (bitch-sensei) or if you genuinely do like him.

(Yellow - Normal, or neutral

Yellow with green stripes - Mocking, confident or condescending

Black - Fury, or rage

Pink - smitten or pervy

Blue - Sadness

Purple - Shock, panic, or surprise

Red - anger, or great annoyance

Orange with red circle on face - correct answer

Purple with red X in face - incorrect answer

White Poker face, a mix of emotions, or bored)

One day he decided to take the whole classroom out to the beach for fun so they can lay off the weapons and murderous plans...ahhh who is he kidding? He knows they'll never stop. Everybody was already jumping into the water and making sand castles while Koro was sitting on his beach chair under an umbrella with a magazine and a sippy cup.