Children at the opera are frequently physically abused/"disciplined" including being hit with a sword, having their limbs stretched by ropes, being forced to hold heavy items, etc. These scenes mostly take place in the first 45 minutes of the film, but are present throughout.
In a brief scene, a turtle is killed to be cooked in soup. The killing of the animal appears to be real and could be upsetting for those who do not like seeing animal cruelty/violence.
A man strikes Shitou in the forehead causing blood to drip,another man strikes and breaks a teapot on a mans head and during a rescue operation some dogs bark in the distance