What kind of title is this?: Manga.
How many volumes are there?: 1 volumes are listed.
How many chapters are there?: 12 chapters are listed.
Where can I read it?: Reading links are listed for Shonen Jump, Official Site, VIZ. Check availability in your region.

Synopsis

About Jaco the Galactic Patrolman

Retired scientist Omori lives alone on a deserted island while continuing his research into time-travel. His quiet life is interrupted when galactic patrolman Jaco crash-lands and decided to move in with him. Can Jaco get along with the old man long enough to save the earth from a dangerous threat? Note: Includes the epilogue and 1 extra chapter.

Action Comedy Fantasy Sci-Fi