Police in Gamagōri, Aichi arrested a 14-year-old middle school boy on suspicion of stabbing a teacher with a ballpoint pen during class. The suspect allegedly stabbed a 30-year-old female teacher over 10 times in both of her shoulders around 12:30 p.m. on October 1. The teacher sustained minor injuries that lasted about a week.

The teacher had warned the suspect about reading manga in class and had then confiscated the manga when the suspect continued reading. According to reports, the student said "Give it back!" and in a fury, stabbed her with a pen from her desk. The teacher filed a report on October 2 and has yet to return to teaching the class.