It's been 9 years since Koro Sensei death and many of his students have already started to getting into an a relationship including Nagisa and Kayano (Akari) and ever since then everything went smoothly until the day of their class reunion Class 3-E discovered a mysterious ancient structure that has been hidden under the School building. Many things will happen from that building just wonder what will happen! Disclaimer: I do not own any of the characters except for some and any of the main characters said in the story belong to their proper owners.
9 parts