Monoeye

The Monoeyes (単眼種 (モノアイ)) are humanoid beings that possess the notable feature of having only one eye.

Monoeyes are able to see objects up to 2 kilometers away without assistance; however, they have poor depth perception, making it difficult for them to navigate 3-dimensional spaces, and their eyes require constant protection from harsh environments as their size makes them susceptible to dryness and allergies.

Physiological Attributes

 * Because the Monoeye's eye is so large, they dry out easier than humans, as well as more likely to get something caught in them, and require a lot of eye-related medication.
 * While Monoeyes have great long-distance vision, their depth perception is very low due to their single eye. It is common for Monoeyes to run into poles and be overall klutzy because of this.
 * Monoeyes are typically socially sensitive about their eyes, and resort to hide them, though ironically, the methods they use to hide their eyes only bring more attention to their face.
 * Monoeyes can order special glasses to hide their eyes, though they are very expensive and not very flattering.
 * Monoeye tear ducts are proportionally larger than a humans due to their single eye, and they emit tears rather easily to help prevent dry eye as a result.
 * Monoeyes, compared to other species, are rather lacking in breast size by average, with notable exception of their Cyclops subspecies.

One-Eyed Priests
The One-Eyed Monk (一つ目入道) subspecies are Monoeyes who have converted to Buddhism. Aside from their mute status, they appear no different than the standard Monoeye, aside from the fact the glances they get from their single eye doesn't trouble them. However, because of this, they are very serious and can be hard on not only themselves, but on others as well.

They mainly use their eyesight to spot those who have neglected their training.

Cyclops
Cyclopes (サイクロプス) are an unusually large Monoeye subspecies, whose special talents lie in smithing/metalwork. Their large eye allows them to accurately determine the temperature of the fire and iron, which is the source of their unique smithing techniques.Also unlike other subspecies, they are surprisingly well-endowed. Other Monoeyes view their special gifts (especially their breasts) with envy.

A rather well-known subspecies, they have been featured throughout popular culture.

Backbeard
Backbeards (バックベアード) are a strange yet powerful Monoeye subspecies. They are capable of hypnosis by having someone stare into their eye, blind others with their glittering eye, and can even fire ocular laser blasts.

As a sacrifice to owning such great abilities, they have juvenile-like bodies, which can result in them being treated like children, a point of discontent for any Backbeard. It is because of this that Backbeards are incredibly suspicious, to the point of calling someone a "lolicon" and run in the opposite direction if someone shows them even the slightest of kindness.

In the Mangas

 * Manako

In the Games

 * Ai