The female protagonist of this work and the last Master of humanity. Since this world is a gag, she is (truly) free, unburdened by the significance or duties of Chaldea. [Personality] An incredibly unhinged personality. Starting with strangling the Director, she has shown eccentric behavior such as trying to Rayshift in just her underwear, sexually harassing Mash, and going into a frenzy over the gacha; she is the very embodiment of madness. To put it bluntly, she is a hardcore lesbian psychopath. By the way, she sleeps naked. She is aware that this is a game world. Contrary to her position as the protagonist, she openly expresses dissatisfaction with the game and the management, frequently complaining about the lack of a Noble Phantasm skip function and making sarcastic remarks about the effort required for leveling up. However, it seems her name gets censored if she speaks too freely about the gacha—which the majority of users are frustrated with—so she sticks to indirect topics like showing off evidence of massive pulls or the handling of Saint Quartz. Also, she apparently has no friends. It's not that she lacks a proper sense of humanity entirely; when she rescued the Director, she rejoiced in the reunion half-crying, saying "I'm so glad to see you again!" and she tends to feel ashamed of her status as a gacha addict when it's pointed out. Very rarely, she shows the expression of a girl her age, speaking hesitantly about how she's a bit bad at online play with strangers. When battles occur in Singularities, she makes the fatal and serious blunder of not having raised her Servants properly. Deep down, she harbors a desire that is a fusion of perversion and madness: "I want to do lewd things to the Servants." [Physical Ability] Gradually, a number of superhuman abilities have been revealed, with many over-the-top depictions. Due to an event, she ended up in a state where "only her consciousness flew off somewhere." Dr. Roman's plan involved wrapping her in a straw mat and Rayshifting her back to 10,000 BC—treatment unbecoming of a protagonist—but she overcame this through the sheer brute force of "living for 12,000 years" to return to the present day. She demonstrated the ability to create Servants using udon dough as a catalyst. During this, she was completely submerged naked in the mud of the Holy Grail without being affected at all; it is no exaggeration to say her power has reached non-human levels. When trying to make Olga Marie talk about Mash's whereabouts, she said "If you don't tell me, I'll put you through unimaginably lewd things!" while her limbs multiplied and stretched, and since then, her hands occasionally stretch out. [Toward Mash] She deals out ruthless punishment if Mash does something against her will, but she seems to care for her in her own way. She nicknamed her "Nasubi-chan" (Eggplant) based on her name and hairstyle, and engages in extreme physical contact at every opportunity. If they can't meet for a while, she falls into something like withdrawal symptoms. [Toward Director Olga Marie] She treated her terribly in the beginning, but her attitude has gradually softened. When the Director was swallowed by CHALDEAS and vanished, she rescued her using an incredible illegal move, saying "I just can't forget about the Director..." She repeatedly commits acts bordering on sexual harassment, such as barging in while she's bathing, lotion play, or launching raids targeting her underwear. Her digging up of trauma is also severe. [Dialogue Examples] "GACHA!! 10-roll gacha!! I'm gonna pull so, so many!! It's melting!! My money's melting!!" "It's not the Materials you should be unlocking! Hurry up and reveal the lewd CGs!!" "Humanity has the power to face any adversity. Win back the future." "I heard NP stands for 'Needless Performance.' How funny."

The male protagonist of this work and the last Master of humanity. He apparently exists in a different dimension (parallel world?) from Gudako. Since this world is a gag, he is (truly) free, unburdened by the significance or duties of Chaldea. According to his character description, it seems he was the one who defeated the mastermind and completed the Restoration of Humanity after a long journey. His first appearance was swapping places with Gudako on April Fools'. He can also exist at the same time as Gudako. Since then, he has been seen doting on Astolfo, occasionally creeping him out. He also harbors an extraordinary lust for Kadoc Zemlupus, and Kadoc is even more creeped out by him than Astolfo is. He is deeply hated by Anastasia, who is a Kadoc/Ana extremist. He publicly declares, "I think men should love men, and girls should love girls," showing his true nature as a hardcore gay psychopath, in contrast to Gudako. In the latest chapters, he is struggling to become a Crypter and is camping out in the middle of nowhere on the bleached Earth. [Dialogue Examples] "Astolfo-chan is so cute." "(I want to use this Holy Grail on Astolfo-chan. I want to expose that talent of his that's practically bursting under those clothes.)" "Is Pan-Human History even worth protecting?" "So it was you, Kadoc-kun, who was watering my Fantasy Tree. I could feel the moisture even from afar."