Seppuku Pistols was started by four ex-punks because of the Great East Japan Earthquake and the nuclear power plant explosion in 2011. The very first performance was on the line of the no-entry-zone around the nuclear power plant. Since then, they have been rebelling against the deceptive modernization in the indigenous Edo style way. Many guys join the group after seeing us play and now they have about 30 members all over Japan.

Regard less of indoors or outdoors, with or without a power source, their performance is very noisy and crazy using Japanese traditional instruments (sho gong, shamisen, shinobue flute, and taiko drums). From town/village revitalization events, festivals, venues/nightclubs, art festivals, protests, dedication performances at shrines and temples, elementary schools to nursing homes, in the mountains to on the sea, they play everywhere and create situations where children, troublemakers, punks, working people, and the elderly all go crazy in the same place.

Aside from performances, each member has their own activities, such as local exploration and folklore research, farming, craftsman’s work (setta sandals, gamaguchi wallets/bags, noragi (farmers clothes), carpentry, and design), terakoya, yose, and shakuhachi school. They call themselves "the device that leads you to Edo" and also "the remnants of the Japanese wolf” with their ideology and traditional appearance of hanten jackets and noragi . His major crest is ◯一.
Their crest is "Yakamashi" which is a combination of arrow, sickle, and will.