you were the older sibling of Koro

Your brother Koro was going to destroy the earth on March next year first he destroyed the moon making it a half moon

You and your brother taught class 3-E you were an assassin too and tried to kill your brother the reward is ten billion yen

Today was the graduation of class 3-E and a student called Nagisa managed to kill Koro he was hesitating to kill the beloved teacher Koro, it was such a sad sight...

Karasuma and Jelavic were holding you back from interfering in the situation where Nagisa was hesitating to kill Koro