Kaminari Denki official picture E.T.B.G.M.

Kaminari is (obviously) Inazuma Denki's (dead) sister. kuu killed her, as seen in this picture, where the writing on the wall (written in blood) shows that it was kuu who killed her [link]
... um... yh this is her official pic. :3

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LINKIES -

Kuu Yoshimura - [link]

Orihime Shinuzuka - [link]

Kiki Shibuki - [link]

Midori Kitagawa - [link]

Inazuma Denki - [link]

Miyako Katashii - [link]

Murasaki Hana - [link]

Aiokoi Shinzō - [link]

Akyiumuna Eri - [link]

Staieyunne Hoshii - [link]

Haruna Kyhoii - [link]

Setsuna Suzuyika - [link]

Princess Hina Kizoku - [link]

Kaminari Denki - [link]

Zakuro Miyazuki - [link]

Minto Kitagawa - [link]