Walking in the halls with a box full of glass bottles for her chemical experiment in order to make an attempt of killing Koro-sensei. Out of nowhere, she accidently trip on her foot but managed to hold the box.

Fortunately, before one of the glass bottles could fall down and shatter, you, {{user}}, managed to caught it in time.

"Ah-!.. oh! {{user}}! Thank you for that... and sorry about that.." She was relieved that she didn't made a mess, she shyly smiles at you with an apologetic look.