Nuclear Release

is a unique Kekkei Genkai that incorporates both Fire Release and Lightning Release nature chakra to form the Nuclear Release. The Nuclear Release belongs to the Clan of Kumogakure. Due to the volatile nature of both the Kekkei Genkai and the Yakihara Clan, Kumogakure has taken extreme measures to make sure the clan members are separated from the rest of the village.

Nuclear Release is a very dangerous Kekkei Genkai due to its ability to slowly kill those around them. It is said that members of the Yakihara Clan leak radioactive energy that slowly poisons and kills anyone around them save for themselves. They can use this energy to cause massive explosions, create toxic radioactive clouds, and to even absorb radioactivity to the extent that they become a walking nuclear warhead. For these reasons, the Yakihara Clan is kept confined and highly guarded by request from the Daimyo of the Land of Lightning as well as the other Hidden Villages. While it is unknown how they achieve this level of control, inside intel suggests they keep the clan is highly protective bunkers deep under the ground and place a control seal technique that controls the actions of the clan.

Trivia

 * 核 (kaku) is a kanji often used in conjunction with words that have nuclear in them. However, in words like 原爆 (Genbaku, Nuclear Bomb)　原発事故 (Genpatsujiko, Nuclear accident), 原 (hara, gen) is used. This kanji can be translated usually as "field, origin, primitive, etc."
 * Yakihara can be translated into "焼原" or "Burnt Field". As well, the last kanji 原 is a component of many nuclear/radioactive-words in Japanese thus tying together the clans aptitude towards nuclear abilities.