We first meet Scaramouche back in version 1.1 during the Unreconciled Stars event. Scaramouche a man who seemed to be from Inazuma (to me I was like Oh, this guys different he has to be from Inazuma), a man with such a dangerious aura that Mona takes us and Fischl to safty immediately how strange, what's going on? Then of course after our escape hes revialed to be working with the Fatui and not simply some soldier but as the 6th Fatui harbinger.
Unreconciled Stars Appearance
After this we see him again later in the event were he says something along the lines of "the stars in the sky are a lie." Then like disappears till like 2.1 just under a year later (November 2020 to September 2021; felt like forever). When he appears again its only for a moment taking the electro gnosis leaving us to grow unconscious. After dealing with Ei and Inazuma we learn through Yae Miko that Scaramouche is a product Ei's contruction of an artifical body, he was an iteration of this and a successful product till he cried once given the gnosis (him crying was a big deal to Ei. Apparently he was more closely modeled after Ei's sister Makoto, she died during the Khaenri'ah fiasco; there's more to this but I'm tapping out).
Ei abandoned him moving on to the Raiden Shogun. Leaving him to slumper in the Shakkei Pavilion on Yashiori Island. Where he ramained till he was discovered and befriended Kazuha's acester Niwa Hisahide (boi is old)(not the exact course of events) where he lived for a time till the Tatarasuna incident. This incidient saw him leaving his once home feeling betrayed by Niwa. After this he ends up living with a boy that unbeknownst to him is ill. They promise to live together but the boy sadly passes.
Everything up to now has slowly been chipping away at him; before he was ever taken in by anyone he rightfully believed that he was abandoned, labeled a failure by Ei. The Tatarasuna incident lead him to experience direct betray believeing that his friend that took him in killed those they considered family. Even the boy and his passing hurt him (he failed to keep his promise). Ignoring exact details he's snatched up by Dottore and joins the Fatui becoming a harbinger.
When we get to Sumeru we encounter Dottore (The Doctor) (this chapter's / nation's antagonist) and eventually learn that he's making some form of artificial god. This artifical god as we later learn just so happens to be Scaramouche. Since we last saw him in Inazuma he disappeared with the electro gnosis not even reporting back with the Fatui. Between then and now it seemed he was approached by Dottore for this project one that'd make use of both him and the electro gnosis (something that he's used to at this point in time, typically serving as a subject for Dottore's experiments). Something he accpeted due to wanting his birth right, the electro gnosis (his heart taken from him after "birth") and the innate divin power he held locked away. When we finally find this artifical god we experience its power, god was not an over statement. We fight him and we loose, we loose in hundreds of simulated battles that then are peer reviewed giving us the win.
The divine right of Scaramouche | not what its called
Look at this man, like no shit we lost so many times (even if simulated)
Scaramouche is someone that has been hurt be the world at every step. There's a comfort that he gained with the electro gnosis in his hand, as if finally filling the hole left behind (the heart he's so desperately wanted). So the scene where Nahida approaches him now defeated and pulls the electro gnosis from his chest was horrificaly sad. He begs actively tearing himself from his new body the whole scene bled with the expression of "take anything BUT the gnosis" (the scene in question; Gnosis Extraction). In the end She plucked the gnosis from his chest leaving him to fall to the ground seemingly having died from the removal of his heart. At the end of the archon quest you can ask about his condition, the reality is that he's fallen unconscious now abandoned by the Fatui. Maybe He'll wake up but we have no idea when if ever.
Fortunatly though He does wake up. Seeing the reality of his stitutation he finds himself begrudgingly in the care of the Nahida. Becoming the subject of the Inversion of Genesis archon quest we accompany him into Irminsul (greatly simplyfing, Irminsul is like the recorded memory of the world. We're introduced to it and the concept before Sumeru but it takes greater focus here with Nahida as she's an embodyment of Irminsul and is stationed in Sumeru) at Nahida's request. Due to Scaramouche being crafted out of the wood of Irminsul he's perfect for interfacing with it in a way that Nahida can't. While with you in Irminsul he confirms whether or not its possible to remove someone from it (ignoreing for a moment the RED FLAG that is why he'd ask such a question I'll try giving it some context. When we first come to Sumeru There is a Greater Lord Rukkhadevata Sumeru's prior archon and Lesser Lord Kusanali (Nahida) the current absentee archon. Again igoring details we witness the removal of Rukkhadevata from Irminsul. To simply put it's like she never existed. All mentions of her were replaced with Nahida. For Scaramouche to ask this while currently tampering with Irminsul is troubling. What is it that he wants to do? Is there someone he wants to remove? Who? Why?). Suddenly Nahida detects a LARGE change in Irminsul, intuiting what's happening she tasks us with finding the change and reminding her of actual history. When we come to we attempt this and find that she doesn't remember Scaramouche. Scaramouche himself is no where to be seen. It's clear he made a change and given the fact that no one remembers him did he remove himself from Irminsul?