Navel Laser

Navel Laser (ネビルレーザー) is the Quirk used by Yuga Aoyama, which was given to him by All For One, who had originally stolen it from someone else.

Description
Navel Laser gives the user the ability to fire sparkly twinkling laser beams from their navel.

Those beams specifically come from Yuga's bellybutton. They can range from short to long-range, with strong enough recoil to propel the user through the air at a high speed. Yuga has the ability to manipulate the size and shape of a beam, such as turning it razor-thin or into a blade of light that can be swung around. The beams are powerful enough to destroy metal and pierce through solid concrete, although they do not appear to be lethal.

Navel Laser is bright enough to illuminate dark areas, a valuable skill in rescuing missions, or work as a beacon, allowing others to easily locate Yuga's current position from the beam of light. For scattered allies, this is extremely helpful for regrouping, and for enemies, it serves as effective bait.

Without assistance from the Sparkle Belt, Navel Laser is out of control, unable to be aimed in any specific direction. Despite this, the user is still able to fire lasers, albeit haphazardly.

During the Final War, while being close to death at the hands of Kunieda's Plant Quirk, Yuga's Quirk underwent an Awakening and gained an increase in power as a result, with the empowered light even causing Toru Hagakure's Invisibility to glitch.

Weaknesses
Because this Quirk did not originally belong to Yuga, his body is not adapted to it. As a result, Yuga's Navel Laser can involuntarily "leak out", meaning that he is dependent on his Sparkle Belt equipment for his Quirk to function properly. According to Yuga himself, he has been constantly wearing his Sparkle Belt since he was a child.

Yuga has trouble shooting with his Navel Laser continuously. He can damage his insides if he uses his Quirk for more than a second. The horrific result of overusing his Navel Laser is losing control of his bowels.

In addition, since Yuga can only fire his Navel Laser in a straight line from the front of his body, he is left vulnerable against attacks coming from other directions, particularly from behind him.

Usage
Yuga likes to use his Quirk in a flamboyant manner, frequently posing with his arms behind his head while firing beams. He thinks of Navel Laser very highly, treating it as an art form. Yuga has plenty of technical skill with Navel Laser, being able to even write through it.

Yuga often takes advantage of the beams' recoil to launch himself far away when he needs to cross over an obstacle. This helps with his mobility to an extent, but it's not a perfect solution due to the Quirk's own limitations preventing him from keeping it active for long periods of time. This often causes Yuga to be left defenseless and in pain with rather frequency.

Yuga's Hero Costume is capable of channeling the energy created by his Navel Laser, letting Yuga fire beams from other connected openings granted by the costume itself, such as his shoulders and his knees.

Trivia

 * Like several other Quirks, Navel Laser has its own signature sound effect: "THOOM".
 * To hide the secret of him being born Quirkless and receiving Navel Laser from All For One as a child, Yuga explained that his Quirk's hard to control nature and severe backlash was due to a birth defect.
 * The general concept behind Yuga's Navel Laser appears to be inspired by character . Just like Yuga, Cyclops can fire powerful beams from an opening of his body (in Cyclops's case, his eyes); however, he is unable to keep his ability under control without the aid of a special device, which he must wear at all times.

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