Taketo dropped out of middle school due to struggles with reading and writing, leading him into a life of delinquency. At 20, he begins attending night school but still finds reading difficult.

Angela attends night school, supported by her husband and daughter. She visits her teacher, Fujitake, in the physics prep room and is surprised to find her classmate, Taketo, conducting a science experiment.

Kasumi, a 10th grader at night school, spends most of her school hours in the nurse's office. When the school nurse, Sakuma, shows Kasumi's writing to Fujitake, he realises how much Kasumi struggles to leave the nurse's office.

Taketo, Angela and Kasumi wait for the science club to be official. Fujitake seeks Shozo Nagamine's help. Nagamine clashes with younger students over differing values. What happens next?

With Taketo, Angela, Kasumi, and Nagamine, the science club is officially established. Fujitake suggests they attend an academic conference to present their research. Mai, who works in a hostess club, sees that Taketo is unusually down.

The members of the science club choose the theme, Recreating a Martian Crater, for the academic conference. They realise they need the computer room for their experiment. Fujitake asks Kaname for permission to use the room, but Kaname refuses.