Masaki Suda

Natsume Mochizuki works as a teen model in Tokyo, but she learns that she has to move to her father's hometown of Ukigumo. She is in a desperate situation because she can't do the things she wants to do in Ukigumo. One day, she meets Koichiro Hasegawa. He is the successor of the Hasegawa family. His family is wealthy ...

Story continues with the students' own conflicts, Koro Sensei’s identity and the fate of the world. The time limit for assassination is approaching.

A mysterious creature destroys 70% of the moon. The creature then warns that if he is not destroyed by March of next year, Earth will be next. The creature also demands that he becomes the homeroom teacher for 3rd grade E class at Kunugigaoka Junior High School. The government is powerless to say no. The creature then becomes the ...