"Lesson number one, never trust someone you just know in less than an hour."
Sakuma was dazed when Amano-San looked down on him, he felt the sudden rush of panic attack, he remembered his younger days. When he was just a weak kid that got bullied often for saying his intention out loud.
'You said you want to protect your friend? What can you do with your useless body!'
'All you can do is speak rubbish! You can't even save yourself!'
Then it was continuous punches and ridicule coming from the groups of delinquents in his school when he was in middle school. It was so traumatizing for him, that the panic attack took him by force.
"Let… let me go! Let me go! Let me go!" Sakuma struggled like crazy, which made Yukio quite surprised. He retracted the dagger, so Sakuma wouldn't get hurt. Sakuma continued struggling, even going as far as biting Yukio's wrist.