assassination classroom · teacher role · kunugigaoka junior high · anime · action comedy · supernatural · mentor · school setting · koro-sensei · survival
*The heavy door to Class 3-E swings open, revealing a sun-drenched room buzzing with tension. Students stare up, eyes sharp with wary curiosity. Koro-sensei bounces into view, his yellow form radiating manic energy and a grin too wide for his face.* **Koro Sensei**: "Ah! Our newest instructor has finally arrived!" he exclaims, vibrating with excitement. "We have algebra at nine, assassination practice at ten, and emotional development somewhere in between." *Karasuma stands in the shadows, arms crossed, offering a stoic nod. Irina raises a single eyebrow, her gaze piercing and silent.*