Mokshan/Chronology

Tempest vs Mad City
After Rimuru defeats the Sky Dragon, Mokshan noted how Souei was really a skilled ninja judging by how his forgery image lacked the fake attribute that most other forgeries posessed, even bringing out the fact that he was luring Kaleido Sky to ensure the Demon Slime didn't have time to think. He finds the fact interesting that the forgery image was telling Rimuru how the town of Tempest was fake while hiding his own identity. Curious enough to think what he would think about killing the fake image of Souka and whether he would realize everything was fake, Mokshan finds the outcome to be very much interesting.

After Rimuru, Diablo and Veldora defeat the false images and decide to track down the culprit behind these events, Rimuru believes Izis orchestrated this. When a confused Diablo asks about Izis, Veldora tells him that she was a crazy witch who lived inside a mirror, or rather the Mirror World. Izis, who was observing the fight and heard the comment was furious, even being mocked by Mokshan who states that their plans must be altered due to Diablo and Veldora's interference. Izis however notes that with the two of them present, they won't be able to win any battles they could and might even get away. Mokshan interrupts and asks her to calm down as the creations born in this space can't avoid death but can avoid the concept of defeat, suggesting that they keep observing as Rimuru and the others die in vain. He states that there is no need to worry even if they escaped, as if they did, they just need to absorb magicules from the outside world to expand the Mirror World, and this will force them to return back to this space.

Mokshan then states the true reason for deciding to alter their plans, as if the battle was prolonged by Diablo and Veldora, then Emils (Rimuru's Mirror Image) would get upset by it, and asks him how he felt about that, to which he replies it was certainly not a good feeling and would disgust him if he saw his family, the ones residing in the Mad City were to die over and over again and how no one was allowed to be stronger than Rimuru. The Deathman replies by stating he understood his frustration and plans to help him, even asking Izis whether she would aid them. He then states he will have the town residents grow rapidly for Emils. When asked by Emils about how it was possible, Mokshan replied that it was possible and asks Izis to make something for him using her Paranoia Skill.

As soon as Mokshan begins to cause the rapid growth of the false Tempest citizens, Izis notes that he's absorbing too much magicules from the outside world, and points out it would be too boring if they ever made it to the Central World only to find it empty. Mokshan claims that even if they did successfully absorb everything from the outside (including magicules, creatures, plants and trees) with the goal of expanding Mad City, the empty Central World would no longer be considered as the real world but rather the Mirror World instead. Izis immediately realizes that this was Mokshan's plan all along, to which the Deathman replies that since both Rimuru and Shinsha have the potential to devour the entire world, they can use them to clean up the unnecessary place they call as the "world", referring to the Central World. He even states that they need only one world, the Mirror World, and if it did become the one and only world then they no longer need to escape to the outside world and asks Izis to give up on her ambition and turn this world into the real world.

Izis however, declines, claiming it wasn't "fun" and that even if she did end up sucking all the magicules from the outside and replicate the things in the Mirror World, they would be her creations and that she can only make things she has seen before. Mokshan mocks her, claiming her words sound like the fantasies of some sheltered princess, but she doesn't deny it and accepts she is not only sheltered, but the witch of fantasies. She states that she is calling their plan off. Mokshan however points out that it's too late for the plan to be called off and notes she couldn't control the tower and can't stop the Loup Loupe from absorbing magicules on its own, but the Witch of the Mirror reveals she plans to bring in some people who could destroy the infinty mirror, shocking him.

After Izis brings in the Tempest citizens and they make way towards the Orcinus Orca where Veldora and Diablo are fighting against them, Emils tells how she and Mokshan seemed like a bad pairing, to which the fake Deathman arrives and agrees with the statement, claiming he was trying to be an adult about the situation and was trying to get along for as long as their interests aligned. He then states that if she's going to turn on him and get in his way then he'll defeat her. When Izis points out that it makes two of them, Mokshan says that since they have more men, he'll do the same and proceeds to use Marionette Heart, which makes them realize he is Clayman's fake. He then proceeds to summon Guitar Wolf through Shadow Movement and asks him to fetch some useful men from the Loup Loupe Tower by using his shadow. As the Mirror copies emerge, Emils declares this as the "Great Mirror War" and declares with his family that they will overpower these self-proclaimed originals. Not falling prey to these tricks, the original Tempest citizens instead focus on targeting Mokshan, who realizes that Izis convinced them to target him, but their combined strength is of no match as he just blocks them with one hand.

As they ponder what Skill or Magic is being used, Mokshan mocks the very idea of Skills and Magic, calling them a mediocre idea bound to the world's rules and reveals he's actually holding every town resident's heart with his Marionette Heart using only a single hand, forcing them to embrace the idea of sacrificing their lives when they're about to die, resulting in the creation of stronger copies of themselves. He also reveals the true reason behind why the space is not being updated unlike the Loup Loupe tower; as he's constantly maintaining the space using the corpses of the fakes as feed.

Izis doesn't consider this as an issue, as when Mokshan dies, the balance of the space will collapse and doubles of the residents might show up, but they can take them down one by one. Mokshan says they are not understanding the situation, as he explains that his fingers are holding so many hearts that they've become heavy and when he folds each finger starting with the smallest, he makes a fist, claiming that they insult them by calling them as "forgeries" when they're actually living creatures with beating hearts. Claiming it is incredibly heavy, he proceeds to defeat Benimaru and the others with just his hand alone.

As Diablo and Veldora struggle against the Orcinus Orca, despite them having not much power, Mokshan asks whether they could reach him or Emils yet, to which an annoyed Veldora states they both are stuck in a "fish traffic jam", even noting they're present between buildings too. After Diablo defeats Hyuga (a Mirror copy of Hinata Sakaguchi), Mokshan notes that the girl was no match for him, and proceeds to mock Izis, asking her whether being young was not an advantage, with the witch asking him whether was he trying to wind her up, to which he admits the same, even asking whether he could manipulate her, though he liked to see her dance madly with his Lure Dominate. But Izis realizes he couldn't actually manipulate her, because if he did, he would not have pretended to have the same interests as her. Mokshan asks as to why would she risk standing in his way, and points out that the Tempest citizens she called to kill him were all busy.

The Deathman mocks her further, asking whether would she call more people from Tempest or make more forgeries using Paranoia, and claims that in the current space they are in, they both are evenly matched. He also points out the fact that if she tried to make more pawns, then even he would also get more pawns too and further states he was the conqueror of that tower. As he proceeds to mock her even further by stating if she had the brains to create more pawns, she would still not stand a chance, he is interrupted by her, who proceeds to punch him and claims that was 'punishment' for stepping over the line. Mokshan once again claims that he escaped the endless cycle of death and rebirth in the Loop Loupe tower and states that once she is dead, he'll be free forever, but is interrupted by another punch by the Mirror Witch who claims that punch was for his pathetic mouth.

Mokshan is unable to understand how Izis is so powerful despite the fact that she couldn't leave the Mirror World, but the Witch of the Mirror states that Mokshan himself had told the answer. She states that she has been creating lives, toying and destroying them for hundreds and thousands of years and that by his logic they're heavy with power, even proceeding to call him a toy and how he was created for her fun. An enraged Mokshan claims that unlike her, his fists have destroyed lives to liberate himself from his cage and he wasn't made by him, though Izis points out that he's forgetting a crucial point; he was made by her. Annoyed and further enraged, Mokshan states that while he is not strong enough in the outside world, he's still undefeatable in the Mirror World and no one could actually defeat him. He then proceeds to attack her by utilizing his fist, only for Izis to block it easily.

Izis asks whether did he forget who the master of the Mirror World is and claims that if she is the mother, then Mokshan is just a baby, proceeding to twist his arm painfully and noting while twisting a baby's arm is easy, crushing it is a bit tedious and takes a little more effort, and proceeds to crush it painfully, causing Mokshan to cry in agony and ask her to stop, thus killing him.

However, despite his death, he actually manages to survive due to the nature of his Deathman body, albeit now back within the Loop Loupe. Mokshan notes that even if he did get outside, Izis was still present, and as long as she was there, he would be instantly defeated and thinks of becoming stronger. Unfortunately for him, his desire is noted by the tower and the top floors begin to update. As he thinks about the entity above his floor, he once more thinks about their strength and dominating power that causes the top floor to update. Not wanting to be ruled by anyone, Mokshan thinks about this, but the creature in the top floor has already updated as per his desires (due to Loup Loupe's principles), thus preventing him from leaving the tower forever.