The evil warlord Gengetsu Kibaoni was defeated 444 years ago by the Last Ninja, the head of the Igasaki Family. In 2015, the Kibaoni Army starts rebuilding their empire and use fear harvested from humans to revive him. Five members of the Igasaki family must use their Nintality to transform into the Ninningers and fight to prevent the revival of Gengetsu Kibaoni.

3 women are happy and busy raising their boys named Yu. Due to some little thing, their lives fall apart. Their anger and anxiety unconsciously head towards their sons Yu.

10-year-old children Midori and Futa live separate lives. Both feel alone and isolated from their parents. They struggle to be kids under the stress and weight of their fractured family lives.