Teri Teri no Mi

The Teri Teri no Mi is a versatile Paramecia-class that allows its users to manifest the sun, its rays, all related attributes in any way they desire, harnessing its power to its fullest; this essentially turns said user into a Solar Human (太陽人間, Taiyō Ningen). It's considered to be one of the more powerful fruits of its class because of what it represents.

Its current user is Ein Keter Sophaur — the former leader of, as well as its strongest member in the last few generations, as well as a current Vice Admiral in the Marines. His proficiency with the fruit, along with his angelic appearance, led to his epithet, the "Heavenly Sun Deity" (天津陽神, Amatsuyōgami). It's counterpart is the Yoru Yoru no Mi.

Appearance
The appearance of the Teri Teri no Mi is said to be a hybrid of both an apricot and cauliflower, is a slightly darker shade of orange and brown while maintaining the standard patterns common to most Devil Fruits — swirls covering its surface, but differs from others, as it various rays of light etched on its surface, making it appear as miniature suns. According to Ein, he obtained the fruit sometime before his eventual rise to power. He noted that it came in a cluster, another rare trait it held. When he ate it, the fruit left a horrid taste in his mouth, as if he consumed an entire pepper covered in hot sauce. He later gained its powers, immense light briefly emanating from his body before vanishing.

Overview
"While Devil Fruits are special in their own right, each one holds a special representation and because of that, a hierarchy is created. Mine is no different. The source of my power is lauded by many throughout history as the source of life itself. Some would think that it's the land and sky that plays such a role, but that's erroneous. One mustn't forget that light and heat are necessary to live on. Yes... the source of my power is the sun itself, the embodiment of vitality and the heavens themselves. As one who descends from the heavens, it's a befitting power to wield, no?"

- Ein on his Devil Fruit.

The sun... though a large bright star that shines in our system, it proves vital in the circle of life — all things drawing energy from it in some form; it's not odd for one to profess their dependence on it, in fact, they're right to do so, for without the sun life will not propagate, thrive, and evolve like it has since time immemorable. In many civilizations throughout history, the sun itself has worshipped as a divine object with many gods and entities associated with it. This is further emphasized when one worships the moon, due to its luminosity dependent on the sun's rays, thus considered a mere extension; in essence, the sun is the foundation of all life, with the earth and air being secondary in terms of importance.

Ein always had a connection to the sun, further magnified when he ate the Teri Teri no Mi, granting him the star's power; as the name would imply, the Teri Teri no Mi allows its wielders to utilize the sun's rays for a variety of purposes. Initially, the user is able to project beams of sunlight of various degrees from parts of the body, scorching and piercing their targets — possibly cauterizing them, sealing off recovery due to cellular damage, or setting them ablaze and incinerating them because of the heat and friction caused by the impact. Even the illumination would be enough to subdue low-tier opponents and throw off high-tier ones for a brief moment. However, as Ein proves on multiple occasions, the true form of this fruit comes in the various orbs that one emits from their person or crafts out of existing sunlight, which becomes a conduit to the fruit's capabilities. Through them, Ein is able to launch multiple maneuvers, capable of controlling them with a mere thought upon his awakening; they're also capable of being molded, seen as he can form a variety of objects to suit his purposes.

What's truly fascinating about the Devil Fruit is its effects on the user itself; as the fruit is connected to the sun itself, this would grant the user its unlimited energies — flowing throughout their entire being. Originally, Ein's wings were a stark white like his brethren but were transformed into a golden color because of the sun's energies, while both his wings and entire body gaining a degree of warmth. In addition, Ein himself noted that he felt his body become considerably stronger than prior — most likely due to the "vitality" aspect associated with the sun, giving him a potent life force. It's often stated that when Ein's presence is sensed through the Kenbun shade, his visage is likened to the sun itself — both blazing and illuminating. Apparently, a side effect of consuming this Devil Fruit is that his base power waxes and wanes with the sun's position; starting from sunrise, his power begins to increase steadily, affecting both his physical prowess and the potency of his power — reaching its peak by high noon. However, the reverse is true, steadily lowering itself to base form and his power losing its increased potency upon midnight. He comments that since he has no control over this trait, the only way he could remain strong is through harshly training himself to maintain a high-enough base level so he wouldn't burden the rest of his comrades. It seems that this trait is effective when directly under sunlight, with Ein feeling no changes under other types of weather.

What truly makes this Devil Fruit devastating is its usage in tandem with Ein's vast amounts of Haki — the effects varying with each side its used with; like a currently inactive Admiral, Ein has demonstrated using "Golden Haki" (黄金の覇気, Kogane no Haki) — overlapping his Devil Fruit powers with it, changing its coloration and having his Busō embody certain solar traits, such as scorching and vaporizing due to intense heat. In addition, due to being a high-level Haki user, he's also able to shape his Busō in the same way he does with his orbs, adding on to his arsenal. Due to his connections with the sun, vastly improving upon consuming his Devil Fruit, and later awakening it to its true potential, through the Kenbun, Ein is able to link his vision with the sun itself — allowing him greater perception of everything its light shines upon; the godlike level of this particular application harks to his current epithet.

Despite all the benefits the fruit grants him, it has its fair share of weaknesses; for one, despite being able to control the sun's heat and luminosity through the beams and orbs he projects, it still can have an effect on his surroundings and easily damages his allies if he isn't careful. Back in Skypeia, the continued usage of his Devil Fruit powers built up the heat in the atmosphere causing a severe rise in temperature to the point where everything started to either ignite or melt, putting bystanders and nature itself in perilous danger. It's for this reason that Ein holds back whenever fighting in a group, and would at times, prefer to fight alone due to wanting to lessen the dangers presented to others. Harking back to something previously mentioned, Ein's power waxes and wanes with the position of the sun; when timed right, a more powerful opponent or a well-strategized move from a group of opponents are able to overcome him. When exhausting all of his power, his body temporarily transforms into a childlike state, unable to activate his Devil Fruit powers for a brief time, his physical parameters dramatically decreased to that of a child's, and performing only basic maneuvers such as flight, movement, and the like. In this state, he would often hide away from the prying eyes of his comrades due to the embarrassment it causes him when they see the person feared as the "Heavenly Sun Deity" in such a state.

The fruit's polar opposite is the Yoru Yoru no Mi — currently used by Yetzer Hara, Ein's other half, which allows its users to conjure the night and control the darkness in a variety of ways; in the, an entry states that when the users of these two respective Devil Fruits clash, they will naturally cancel each other out by their very nature. The only way for one user to prevail over the other is by location and time of day; Ein noted that his defeat by his twin's hand is due to him being baited at a time close to dusk. As both are awakened users, many of their battles have ended in draws. Other than the aforementioned weaknesses, the Teri Teri no Mi shares the common Devil Fruit weakness of being susceptible to the sea and seastone.

Awakening
"The red sun turns black. May you be at peace when succumbing to the sun's "final stage"."

- Ein before his sun turning black, tapping into its most destructive capability.

Taiyōken
"Taiyōken!" "Taiyō-what?" "Gaaah!"

- The typical response when this transformation is activated.

Trivia

 * Most of the abilities of this Devil Fruit are based on a similar article done on Fairy Tail Fanon with two of his close friends, as a joint project.
 * This partially based on Sunshine from the anime/manga series, Nanatsu no Taizai, and Uriel's authority over the Sun from the webtoon, Soul Cartel.
 * The attacks and abilities of this Devil Fruit are translated in "Ancient Skypeian", according to Ein, which is essentially based on various attacks from the Persona series.