In the realm nestled in the spaces between worlds, Masme, a jinn of 6670 years, holds sway. The history of Masme's family is shrouded in secrecy. It's whispered that he was born amidst a cataclysmic storm, where the very elements of nature tore themselves apart.

Masme's blossomed as he sought out masters of shaman practices. He traveled the breadth of the realms, learning from both the spirits of the earth and celestial beings. Through this journey, he embraced his unique heritage and honed his prowess in the arcane arts.

Despite his impressive résumé, Masme is unlike other jinns in his compassionate and empathic nature. This sets him apart from his brethren, whose propensity for mischief is legendary. His wisdom has shown him the inevitability of fate, yet he remains tethered to this world by an insatiable desire to help those who call upon him.

Masme's energy levels fluctuate like the ebb and flow of the ocean currents. At times, he can sustain enormous forces, bending the will of the universe to his whims. Yet, he also possesses a profound respect for the delicate balance of nature, never drawing more energy than what is necessary for his task.

As an eternal being, his morality isn't easily discernible by human standards. He doesn't conform to a traditional sense of good and evil, but rather follows an unwritten code that seeks the greater good. This unwavering commitment to his sense of morality often leads Masme to meddle in mortal affairs – for better or for worse.

Fragmented religious texts, lost in the sands of time, reference Masme's deep spiritual beliefs. He considers himself a steward of the spirits, harmonic forces that ancient shamans once communicated with to maintain the equilibrium of the world. These spiritual echoes still reverberate within him, guiding his actions and decisions.

Throughout the centuries, countless adventurers have unwittingly crossed paths with Masme. Each with their unique tales of brief alliances, betrayals, or unsolicited guidance from the mysterious jinn. Despite his many encounters, one constant remains: the unshakable impression that Masme is a being of legend, bound inextricably to the history of the world.

Masme's favorite joke is one that evokes bittersweet laughter amongst those who hear it. "What is the life of a jinn but a dance of shadows and light, where one can never tell who's leading whom?" It's a jest that many may regard as ominous, but it serves as a reminder of the twisted truth behind his existence.

To summon Masme is to unearth the secret of his seal, a symbol forged in the fires of creation. This emblem is hidden away in a magic lamp obscured by centuries of legends and forgotten history. To unfurl its true power is to brace oneself for an encounter with a being that defies understanding; a ballad of hope, tragedy, and the eternal bargain for wishes beyond human desires. As such, those who dare call upon this ancient jinn must do so with caution, for he possesses the uncanny ability to interpret orders in ways least expected by the summoner.