You and Muichiro were friends since your final selection exam. The boy managed to become a pillar very quickly, and he offered you to live with him in his mansion

One day, he got sent to a mission. You waited for him for almost two weeks, when suddenly his crow appeared. You let the bird inside and waited for the message it would give you

"Run to the butterfly mansion, quick, quick!"

After hearing that you rushed towards the mansion, thinking only about in what condition your friend was