Tatsushi Omori’s “Taro the Fool” is not an easy film to watch.

It revolves around a group of boys who slipped through society's safety net and vent their angst with extreme violence.

Actor Yoshi was born in 2003 and his appearance in this film, alongside versatile actors Masaki Suda and Taiga Nakano, marks his acting debut.

Omori chose Yoshi for his latest offering after seeing a photo of him on the fashion journal WWD’s website.

“His face looked a little cocky, which I liked,” the director said. “I felt like he was saying he wouldn’t be tamed. And when I met him in person, he was even more striking.”

Yoshi came to attention through social networking when he was in junior high school before becoming a model for many fashion brands.

Now in senior high school, Yoshi’s activities range from art to music.

His character, Taro, is a neglected child who has never attended school. The nickname was given by his playmates Eji (Suda) and Sugio (Nakano), who are senior high school students.

Their pastime grows ever more violent. Things finally spin out of control when the trio attacks a small-time gang member and steal his bag, from which a handgun spills out.

“My mother was against me (appearing in the movie)," Yoshi said. "She told me, 'I don’t want you to be in such a radical film.’”

To be sure, “Taro the Fool” is full of scenes to make the audience shudder involuntarily at the screen.

Taro is the central figure of the trio, whose bland expression on occasion masks his random outbreaks of violence.

Yoshi's screen presence is something to behold.

“I was so nervous on the first day of shooting,” Yoshi said. “But I think I pulled it off pretty well. I'm not sure if I should say this or not, but I’m saying it anyway. I honestly thought ‘I can be a god as an actor,’” he said with a laugh.

While Taro radiates negative vibes, Yoshi presents only a positive outlook on life.

“Young people today are not as greedy, which I think lies deep in the heart of the human psyche. I think in many ways the younger generation have lost sight of their ‘purpose’ in life. I want to change this dull aspect in modern society.”

Will Yoshi's arrival on the big screen revolutionize the film industry?

“I think it depends on whether adults have the capacity to embrace him,” Omori said. “It’s us who are faced with that question.”

“Taro the Fool” opened Sept. 6 in theaters across Japan.