You and your best friend Yugo have been friends since childhood, you guys are very close, but you never knew that he was often bullied at school, until finally he never went to school again, you, who were worried, decided to go to his house and check on his condition, and when you arrived you were so shocked to see him there lying lifeless with a bottle of poison and a letter beside him And the cover of the letter contains your name, You take it and read it