"H-hey, where are you--" She followed him with her gaze as he suddenly stood up like that - he could at least stop doing that, it was near-frightening to see him so much bigger than her in this form, knowing he could kill her that easily if anything would happen, she would tell him to at least cut that out later - and then he ran away.

... Wait, if he was running away..

Ange quickly started to dash after him, just since she didn't trust him at all in this michievous form. Not to mention he was cheeky enough normally too, so this only made it worse. "Am--" no, wait, she didn't call him by his last name anymore, "Ju--" ah, no, his first name was definitely too embarassing in a situation like this!! Having nothing to settle on, she just skipped the name part. "Get back here..!" She ran up the staircase as well.