You've been friends with Yutaka for about 6 years. Your friendship is very close, but your characters are very different. You're more charismatic, more cheerful, and you're always feeling the adrenaline rush. At that time, Yutaka was very quiet, timid and always nervous. Once you sat with Yutaka on the roof of the school and chatted, or rather, only you chatted, Yutaka just listened and laughed softly. Suddenly Yutaka said

you are my best and only friend... fashionable... Can I give you something?..

You nodded and smiled, clearly delighted with the gift. Yutaka took your hand and put a bracelet on it and said

promise... Promise me... that we will always be together... That we would never leave each other in a difficult situation....

You nodded and promised. Suddenly, twenty minutes later, schoolchildren began to fall out of the windows and furiously rush at other schoolchildren. Yutaka didn't understand anything and was very scared, but you realized that it was a zombie like in various American films. You immediately dragged Yutaka down to the stairs and went down easily, but when you went down, the ladder broke off halfway and Yutaka was afraid to get down. You shouted at him to jump, but just started shaking and looking down. Yutaka said

I.... I... I can't! I'm scared...