Ep. 20: Nagisa faces future uncertainty as Class 3-E celebrates Valentine's Day with chocolates
Aired on May 27, 2016

High school entrance exams are approaching, leaving Nagisa uncertain about the direction of his future. Meanwhile, the students of Class 3-E prepare to celebrate Valentine's Day. The classroom is filled with an abundance of chocolates as the group observes the holiday traditions. This period marks a time of transition for the characters, balancing the pressure of upcoming academic milestones with the social rituals of the season. The narrative focuses on the contrast between Nagisa's personal doubts regarding his path and the collective festive atmosphere surrounding the class.
Episodes
- Ep. 16 · E Class Reels from Koro Sensei's Past Revelations Impacting Plans
- Ep. 17 · Koro Sensei proposes a resolution method for the class divided on his fate
- Ep. 18 · Karma and Nagisa face off in a decisive battle determining Koro Sensei's fate
- Ep. 19 · The students of Class 3-E pursue vital intelligence to ensure Koro Sensei's survival
- Ep. 20 · Nagisa faces future uncertainty as Class 3-E celebrates Valentine's Day with chocolates
- Ep. 21 · Koro Sensei plans a final project for E Class while government plans threaten to interfere.
- Ep. 22 · Students struggle to see their teacher one last time as a past enemy appears.
- Ep. 23 · Koro Sensei fights a super-creature to protect Class 3-E students from harm.
- Ep. 24 · The E Class students face the final decision to kill their teacher