Eiji Nagasawa

The manga does not establish a detailed individual personality for Nagasawa. He appears primarily as part of Kurono's class and everyday social environment.

Unlike several classmates who become involved in bullying, romance or other subplots, Nagasawa is not given a substantial independent character arc.

Nagasawa is an ordinary human with no established supernatural abilities or specialized combat skills.

He has no known access to Gantz equipment and does not participate in alien-hunting missions.

Nagasawa appears as one of Kurono's classmates during the school portions of the story. His presence contributes to the ordinary life Kurono continues inhabiting while secretly participating in Gantz.

No major Gantz-related storyline is established for Nagasawa, and the manga provides little additional biographical information about him.

Kei Kurono is Nagasawa's classmate. Their shared school environment is the principal established connection between them.