Melisson is the given name of a Dark One interpreter representative, a figurehead extension of an extremely powerful Dark Mishhuvurthyar that was coined 'The Infection Queen' by the Daughters of Eve. She is known to be a figure of supreme authority over the Mishhuvurthyar and one whom sits amongst the Sfrarabla Nougpift Eyfrlurpjakar's twelve Elders.

Interpreters are one of the many forms the Dark Ones can adopt, chosen in order to better communicate with and 'interpret' for their present enemies, which are for the most part humanoids. Melisson's own form follows that function and is largely patterned after a Yamataian adolescent female, her looks a contradiction of childlike charms and feminine comeliness. Most noticeable is her reddish pigmentation: wine-red almond eyes, a mane of crimson hair that cascades down past her waist and rosy skin akin to a pale-skinned woman emerging from a hot shower. Of note is also the Valkyrja-like features such as the furless ears and the four digits on hands and feet.

Melisson's mannerism and body language evokes that of a pleasant and well-mannered noblewoman with something of a cruel streak. Her voice is a self-assured soprano that manages to utter both the Yamataian and Nepleslian languages with the barest of accents. Despite bearing the winsome countenance of a maiden, that vulnerability is quickly dispelled when Melisson bares her teeth: her dentition is a double-row of sinister triangular shark-like teeth.

Her sole articles of clothing appear to revolve around a collection of pale babydoll dresses that were once white (SMX vessel rarely include amenities such as laundry machines).

Melisson epitomizes the word diabolical. Many, enemies and friends alike, have acknowledged her as one of the most dangerous amongst the Mishhuvurthyar, including her own kind, for her displays of methodical, intentional, and frequently successful evil. Melisson herself is simply amused by this: evil is the point of view deeply steeped in a society's determination of acceptable social behavior; since space is strewn with many different cultures the definitely of such evils is always different, always changing. Melisson's own moral code, if one could call it that, is “Vaaker Talkaup” - a Mishhuvurthyar philosophy that mankind knows better as “The Will to Power”.

The concept of individuality is one which is foreign and novel to her. Melisson is a hive mind of the many small creatures merged to compose her (which are very similar to Bug-type mishhuvurthyar) and in turn herself a small part of the Infection Queen's perspective and consciousness. Though she speaks with one voice and has studied mankind much, the cares and narrower views of individuals is one that is alien to her and she pays little thought to values such as compassion. That, in turn, gives her amoral tendencies that easily makes her appear whimsically cruel and spiteful toward the things she looks down on (and an unfortunate many qualify to her as food - Melisson prefers live prey and does not draw the line at the non-sentient).

Despite a great capacity for ruthlessness and the easy use of callous violence, Melisson displays little belligerence and usually applies herself with cunning - she loves scheming and the extent of her farsighted and methodical deviousness has made many refer to her as a skillful 'puppeteer'. While Melisson can be manipulative, she is actually earnest and truthful - her promises and vows appear to be binding things to her (this has included playing the good host with invited guests in the past). Despite a glib tongue and tremendous psionic prowess, Melisson chooses not to stoop to subterfuge so to retain a commodity very valuable in her eyes: credibility. With credibility, any statement she utters is truthful and worth serious notice - failure to take heed then becomes something a less than well-reasoned individual would do at his or her own peril.

Given Melisson's great show of ill toward PNUgen and Dr. Shinichiro Nobumoto, it has been hypothesized that the 'Infection Queen' may in the past have been captured and experimented upon by PNUgen, with the findings used to then create the NH-19 test weapons. She would have, at some point, psionically altered the behavior of her 'offsprings' in order to turn them from slavishly obedient to openly resentful toward their creators. That rebellion eventually lead to have the Dark Ones support the NH-19s - whom eventually bred into the Mishhuvurthyar and formed the Sfrarabla Mishhuvurthyar Xhrafuklurp (SMX).

In YE 27, findings from the YSS Nozomi revealed that the Mishhuvurthyar had somehow subverted and taken control of entire Yamataian warfleets and turned them against each other. It was strongly suspected by the Daughters of Eve that the Infection Queen had been directly involved in the large-scope mindwork done then.

Melisson herself only came to be involved during the YE 29-YE 30 period of the Mishhuvurthyar war - showing her to be both a skilled fleet strategist and a cunning spokesperson for the Mishhuvurthyar. Using the first Shlarvasseroth-class Flagship built, her achievements include the near-conquest of Lor, the annexation of the Bard Cluster after ousting the Fifth Expeditionary Fleet with an extremely low number of ships, the subsequent destruction of the Second Standard Fleet (then lead by Taisho Ketsurui Sharie). When her advances stalled upon approaching the core territories of the Yamatai Star Empire and that the Star Army of Yamatai slowly went on a counter-offensive, Melisson turned to diplomacy with the Democratic Imperium of Nepleslia and revealed to them some underhanded play done to their people by Yamataian factions, causing great amount of frictions as well resulting in upheavals in the YSE government which caused the Ketsurui Clan to give the throne to the Motoyoshi Clan.

Melisson's last public appearance was at the International Relations Conference of YE 30, where she delivered an ultimatum for the Yamatai Star Empire to surrender itself to the Sfrarabla Mishhuvurthyar Xhrafuklurp (SMX) or face complete annihilation by YE 31. Her declaration quickly brought the proceedings to a halt as Prince Motoyoshi Tio ceased diplomatic talk altogether and evacuated so to have the Star Fortress' security force apprehend her. Melisson mysteriously escaped capture by disappearing, leaving only a pile of clothing behind. Her departure was quickly followed by an entire withdrawal of the Mishhuvurthyar through trans-dimensional means, leaving all their former holdings to the Democratic Imperium of Nepleslia, although the Yamataian Empire was quick to annex several of the worlds before the Nepleslians were able to secure them.

In YE 33, the crew of the YSS Miharu captured Melisson and returned her to Yamatai. She was placed in a secure holding facility on Yamatai (Planet).