Kim is living a peaceful life with his father as a farmer on their planet until one day when a runaway spaceship is detected moving at a high speed towards his father's farm. To rescue his father Kim jumps on board the ship and manages to land it safely before it crashes. On board the ship he finds a severely Injured lone survivor whom with his dying words begs Kim to take something of his to the Galactic Fleet. He then transfers something that was attached to his arm onto Kim's arm. The thing was a Lens and its transferring should have been impossible and having it has turned Kim into a Lensman. Other than giving Kim unknown powers it also contains vital information for the victory of the Galactic Fleet over the evil Boskone Empire. Kim must now using the spaceship Britannia bring the Lense to the Galactic Fleet. But this is not an easy task when Lord Helmet of the Boskone Empire is willing to use everything in his power to stop him.

Three additional adventures for the Kimengumi and friends. In the first episode, the boys fail their exams right before summer vacation and have to take supplementary lessons. The second episode is a mandatory school trip to the beach during summer vacation for a swimming competition. In the third episode school is back in session, the karate club is in danger when a new opponent appears.

50 years have passed since the events of the original Hakushon Daimaou series. Akubi is training to become queen when she meets Kantarou Yodama, the grandson of the genie bottle's original owner, Kan-chan. Together, Akubi and Kantarou take on many jobs in the human world and learn the importance of having a dream.

The story is set in August of 2026 at the Fuji Training Facility. Natori Touko, a third-year middle school student in the Eastern Private Defense Academy, is entrenched in field training with instructor Kamiya. It has been a harsh training regiment, but it is finally the last day. Kamiya proposes a extracurricular class under the name Newest Weapons Research. But then, an incident occurs that rocks all of Japan.