"To Be Hero" is a 12-episode anime series that blends comedy, action, and surreal elements. The protagonist, Bang Ku, is a middle-aged, divorced toilet designer who lives with his young daughter, Bang Xiaolan. While using a public toilet one day, Bang Ku is accidentally sucked into a mysterious vortex and transported to another dimension. There, he encounters a deity who grants him superhuman powers, transforming him into a muscular, heroic figure. However, this transformation comes with a catch: his appearance in the real world becomes grotesque and unrecognizable, resembling a deformed, chibi-like version of himself.

Upon returning to his original world, Bang Ku discovers that his new powers are tied to a greater responsibility. He learns that Earth is under threat from interdimensional invaders known as "Eviloids," who seek to destroy humanity. Despite his unheroic demeanor and comedic struggles with his new appearance, Bang Ku resolves to protect his daughter and the world from these threats. His battles against the Eviloids are marked by absurd humor, over-the-top action sequences, and a recurring theme of fatherly love and sacrifice.

Bang Xiaolan, his daughter, plays a central role in the narrative. Unaware of her father's transformation, she initially views him as a strange, alien-like creature. Their relationship evolves as the story progresses, with Bang Ku striving to maintain his role as a protector while grappling with the emotional toll of his altered identity. The series also introduces other characters, such as Bang Ku's ex-wife and various Eviloids, each contributing to the chaotic and unpredictable nature of the plot.

The storyline takes unexpected turns, blending slapstick comedy with moments of genuine emotional depth. Themes of family, identity, and the responsibilities of parenthood are explored through Bang Ku's journey. The series concludes with a dramatic and bittersweet resolution, emphasizing the sacrifices made for loved ones and the enduring bond between father and daughter. "To Be Hero" stands out for its unique premise, balancing absurdity with heartfelt storytelling.