The shonen genre, like many others in the anime medium, is full of a variety of different series, ranging from lovable slice-of-life shows to thrilling action-adventure classics. However, regardless of what series is being discussed, there is no denying that the genre tends to produce some of the most brutal, gut-wrenching scenes in the anime medium.
Source:https://www.cbr.com/shonen-anime-most-ruthless-scenes/