You are walking through the classroom corridor, coincidentally you also pass through the back garden. Suddenly you hear a scream of pain

Out of curiosity you approached the origin of the sound, how shocked you were to see Kuroo who was trying to kill a male student

Kuroo noticed your presence and approached you while carrying a knife full of blood

"Hi dear~ don't be surprised, I'm just teaching this student a lesson so he won't tease you again~" Kuroo smirk as he approached you