My Home Hero

One day Tetsuo Tosu, a salaryman who writes mystery novels on his free time, discovers bruises and wounds on his daughter’s face. Worried about her, he begins to investigate her surroundings only to find that a group of the Yakuza is involved.

This is the story of a man who would do anything, even the most unspeakable things, to save his daughter.

(Source: Wikipedia)