Zetman is a Devilman derivative (or in the case of the original one-shot, an obvious pastiche) that fills the niche of those looking for a darker, sexier superhero comic while retaining some of the camp of the genre, along with character duality reminiscent of a reversed Batman/Superman dynamic. Fans of the slow-burn will enjoy the steady build of the plot, while others may be frustrated at points where it seems to move *too* slow.

Its strongest point lies in its artwork, which will likely keep people reading despite bumps in story construction. The artwork is beautiful and polished, with immaculate attention to detail and anatomy put into the character designs and settings, which is impressive during extensive fight scenes with highly detailed characters. Those who appreciate the hyper-detail that goes into works like Berserk will likewise also appreciate the effort put into Zetman's art and design.

Storywise, Zetman is a familiar sci-fi take on a classic subject and becomes fairly meta as genre-specific anime origins become integrated into its plot. While slowly paced, the story is full of timeskips and flashbacks, at times becoming incoherent or suffering from superfluous dialogue when the priority should be "show, not tell." The attention to detail is extensive, but the storytelling would benefit with streamlined editing. While the overall soul of the story is meant to be in the internal conflicts of the main characters with a "nature vs. nurture" subtext, it remains weak by being largely driven by plot points, with the main character remaining fairly static. While a hit-and-miss for some, Kouga's character arc remains the most dynamic thus far.

This lack of dynamism extends to the female characters to a great degree - most lack dimension and serve as plot devices to create conflict for the male characters. It's worth mentioning that this manga could be called "Fridged Women: Zetman Edition." Those with a low tolerance for this trope will quickly become frustrated by the constant sexualized peril and exploitation of the female characters, which appears so fetishistic it can border on guro. While tolerable the first few times, the constant recurrence can quickly become redundant and exhausting. Those discerning of well-developed romance will probably crinkle their nose when the first major one comes out of left field, feeling jarringly hasty and uncharacteristic. The motive for the shoddily constructed romance is blindingly obvious, which will leave some with a sour taste.

For all its flaws, Zetman has its poignant moments and is worthwhile for those looking for a niche seinen with retro superhero vibes. This story could also satisfy anyone simply looking to read something with beautiful art. It is committed to retaining suspense and tension, which makes it an exciting read when all the elements flow smoothly. With the action only now seeming to truly kick off, it could still have time to iron out its flaws.