The art style is characteristic of its era—softer lines and hand-drawn aesthetics compared to modern digital animation. Character Dynamics:

Shonen (targeted at young teen males) is the most popular demographic, known for high-stakes action and themes of friendship and perseverance. The Vibe: Dark fantasy meets high-octane martial arts.

If you ask anyone on the street to name an anime, they will likely list a "Shonen" series (stories targeted at young men, featuring epic fights and friendship). These are the heavy hitters that define popularity.