Ginosuke is Rumina's best friend since childhood. He has no special elemental powers, but he is very intelligent although he isn't exactly what one would refer to as 'street smart'. He later uses a very useful weapon that fires elemental attacks. His personality is somewhat timid, but he has a lot of common sense, and can be very fierce if he has to be. Ginosuke always wears his very thick glasses that change his appearance so much that his friends can't recognize him without them.

Under the capital city of Tokyo, Japan, there exists a large, vast, and unknown world known as Underground. There, people known as Elemental Users exist; people who have the ability to control the elements: Fire, Water, Lightning, Magnetism, Freeze, etc. Meet Rumina Asagi and his best friend Ginnosuke Isuzu, two average high school freshmen who reside in Tokyo. When they meets Gravity User, Chelsea Rorec, and the Miko of Life, Ruri Sarasa, their whole life changes into one big adventure.
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(Source: Anime News Network)

Younger brother to [Sam Khouth](https://anilist.co/staff/95304).

Sealed and forgotten below Tokyo, there is a world called Tokyo Underground. Bodyguard and element user Chelsea Rorec escapes the underground with the Maiden of Life, Ruri Sarasa. They take refuge in the home of Asagi Rumina but are soon attacked by members of the Company ordered to retrieve Ruri.

Ginosuke Isuzu