Base Class: Monk
Ancient stories tell of a being known only as The Humble Godling, a hero (or perhaps a criminal) who attained enough power to become a god or goddess but instead refused, choosing instead to be forgotten aside from their many deeds. In the Forgotten Realms, when The Humble Godling refused to ascend to the Throne of Bhaal, they were granted a very powerful wish by divine power: That their name, race, and identity be forgotten, and only the history of their deeds remain. This wish was granted, and all memory of this person was erased; statues and bard songs were altered, and the figure known as the Humble Godling became a legend with no name. A similar version of the story exists in other settings where this tradition has taken hold: some powerful adventurer shunned fame and divinity for obscurity instead. For example, in Ravnica, it might be a tale about a legendary agent of House Dimir, in Exandria, perhaps a tale is told about the Ultimate Grinner, and Eberron might have stories about a Nameless Changeling who managed to mask their true identity so well that they even fooled themselves. Consequently, in other realms this Monastic style might be called something else, like the Way of the Forgotten One or The Hidden Tradition.
The monks who studied this story realized that the ultimate in humility was being remembered for deeds and not name, and began an order devoted to being forgotten, almost invisible, but still achieving great deeds. Most monks of the path believe the Humble Godling was probably a monk, because who else could perfect themselves to the point of immortality and then have the presence of mind to remain mortal? They believe that anyone is capable of treading the path to immortality, but that the journey is more important than the destination. They also believe that a soul is never truly at rest until it is forgotten; rather than bury or entomb their dead, they prefer to burn the body and scatter the ashes to the winds to speed the journey to nothingness, or in some cases leave it to be consumed by the elements and beasts.
Monks on the Path of the Humble Godling may even shun names, and will often simply introduce themselves as "a simple monk, a humble woman, a forgotten man, a nameless one" or similar words to that effect. They tend to refer to other members of the order as "brother" or "sister" or "sibling," and the leader of a monastery as "most humble one" or "sensei." To be capable of turning down godhood to be forgotten is an ideal they hold. For whatever purposes, they do their work without taking credit for it, if possible, often working in disguise or under assumed aliases. They normally are reluctant to participate in ceremonies honoring them, but will accept rewards if the treasure can be put to good use in other anonymous deeds. Not all students of this path are able to completely rescind their own names, but it does seemingly become easier to accomplish as they advance in rank, and as they often use their ki to charm and beguile others, it helps to remain relatively unknown when such effects wear off.
Monks of this order usually still profess belief in the gods themselves, and many dedicate their service to doing works in the name of established deities. They see many of the existing gods as ideals that would be very difficult for an ascended mortal to live up to, and strive to emulate the power of the gods while remaining humble about their own mortality. Some may even use the teachings to escape their past or enhance their criminal careers, particularly those in service to darker gods or powers representing trickery, as being anonymous offers many benefits.
Secret Self
When you choose this path at 3rd level, you gain proficiency in the Deception skill if you don't already have it, and Wisdom (Insight) checks made against you are at Disadvantage. You also gain proficiency with the Disguise Kit if you don't already have it.
Forgotten Friend
When you choose this tradition at 3rd level, you learn to harness your ki to duplicate the effects of certain spells. As an action, you may spend 2 ki points to cast Disguise Self, Charm Person, Command, or Silent Image, without requiring material components.
You can also use the Friends cantrip a number of times equal to your proficiency bonus, and you regain these uses whenever you finish a short or long rest. You may also spend 1 ki point to cast the Friends cantrip if you have no uses left.
Beguiling Strike
When you succeed at stunning an opponent with your stunning strike, you can use your reaction to expend an additional 2 ki points to charm the creature instead of stunning it, as if it had failed the saving throw for the spell Charm Monster. Creatures immune to charm are unaffected by this attempt to knock some sense into them.
Additionally, whenever you apply the Charmed effect to a creature using a Path of the Humble Godling feature, you may gain Temporary Hit Points equal to a roll of your Martial Arts die + your Wisdom Modifier.
A Nameless Influence
Starting at 11th level, you can use an action to spend 3 ki points to cast the spells Detect Thoughts, Calm Emotions, Arcanist's Magic Aura, Invisibility, or Suggestion, without the need for material components.
Whenever you make a Charisma (Persuasion) or Charisma (Deception) skill check, you may also add your Wisdom Modifier to the die roll. If you fail the check, you may spend 1 ki point to reroll the check, but you must accept the result; you can't use another ki point to try again.
Mind of the Most Humble
At 17th level, you can use an Action to focus your thoughts to protect your true identity. For one hour, you become immune to psychic damage, divination spells (except those you choose to be affected by), and the charmed condition. During this time, any Perception or Investigation checks made to detect you or discern your identity or abilities are made at Disadvantage. While under this effect, you can also choose to cause your Unarmed Strikes to deal psychic damage.
Additionally, while under this effect, you can use a Bonus Action to spend ki points to extend the duration of this effect, up to a maximum number of hours equal to half of your Monk Level. Each ki point spent in this way extends the total duration by an additional hour. Thus a level 17 monk could spend up to 7 points to extend the total duration to 8 hours, a level 18 or 19 Monk could spend 8 points to extend the duration to 9 hours, and a level 20 monk could spent 9 points to extend the duration to 10 hours. Once you have reached the maximum duration or the effect has worn off, you must complete a Long Rest before you can use Mind of the Most Humble again.
This effect ends if you become unconscious or die, or if you choose to end it voluntarily.

mostly influenced by Balthazar from BG2 and the Hidden Masters from Kung Fu Hustle