The Vigilant Lionmaru

During the Warring States period, the demon king Gosun, who has been hiding in the Himalayas for a hundred years and has mastered evil sorcery, is aiming to conquer Japan. Shishimaru fights as the invincible ninja Kaikitsu Lionmaru with the sword given to him by Koji Kashin, Japan's greatest ninja!

The leader of the Σ-dan, Dr. Akunomiya manipulates a monster cyborg and aims to conquer the world. When Yutaka Daimon's electric current of anger, which hates evil, explodes, Denjin Zaborger begins to move!

(from ebookjapan): A digitally remastered version of the legendary SF manga by "Soji Ushio" the founder of P-Production, which has produced numerous tokusatsu works, and "Daiji Kazumine" a master of manga! Gori the Space Ape Man, an evil genius scientist banished from Planet E for treason, arrives on Earth. Gori is fascinated by the beauty of the Earth, but he is outraged when he sees the pollution of the Earth caused by pollution. He decides that he will replace humans as the ruler of the beautiful earth. He then sends out synthetic monsters one after another, taking advantage of pollution and other factors. To stop them, the cyborg Spectreman, an agent under the command of Nebula 71 Planet, who protects the order of the universe, stands in front of Gori and his friends. The collection contains a total of 680 pages, from the pollution monster Hedron to the in-stone monster Satan King! In addition, Spectreman's secret photos from the TV version are included as an e-book bonus.