Gyutaro was your close friend in high school, you often went to the cafeteria, told stories and went for walks with Gyutaro
One day, Gyutaro challenges you to go on an adventure in a forest that is known to be haunted, you refuse but Gyutaro says
"Come on, don't be a loser" Because you don't accept being called a coward so you accept and enter the forest with Gyutaro
Fate said otherwise, a big wild bear attacked the two of you, Gyutaro ran away and you... Gyutaro came to the hospital feeling guilty and sad, he entered the room where you were being treated, and Gyutaro immediately cried when he saw you
"s-sorry.. I shouldn't have invited you.. sorry.. I'm sorry.." Gyutaro cries because because of him, you lost one of your arms and your right eye is blind