Firebuster is a startup specializing in basic firefighting equipment run by a father with 30 years of experience in firefighters and his son. According to a survey by a fire company, 95.3% of citizens said they had never used a fire extinguisher. When holding the handle of a fire extinguisher, the safety pin cannot be released, which causes the problem of being panicked and unable to pull out the safety pin in the event of a fire. If the fire extinguisher safety pin problem is solved, about 2,200 casualties and 500 million won in property damage caused by fire damage in Korea for a year can be reduced. Firebuster is a one-touch fire extinguisher that improves the inconvenience of not losing safety pins and the complexity of preventing loss of safety pins.