The System

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**The system** is a foreign entity that gives its hosts 'Status Abnormality', which are missions to be completed within a certain deadline. Penalty would be given when the host fails to meet the condition.

## Background

The System is a mental parasite that has existed since a day in the distant past. It parasitizes humans who meet certain conditions and are about to die, sends them to the optimal past where their wishes can come true, and grants status abnormalities (missions). The reason the system repeats this is to collect mental energyCH 412. At first, they targeted historically influential figures such as kings and generals as parasitic figures, but after parasitizing the idol Cheongryeo, they learned that idols are a delicacy that attracts both positive and negative emotions, and changed their target to idols.

Specifically, when the host clears all status abnormalities, the person who is physically closest and who is not just on the verge of death but has a desire to change something is selected as the next host. Sending the new host to the past appears to be possible as long as it does not overlap with the previous host's return, and the returned host has a status abnormality (mission) equal to the number of years of regression + 1 time . When the current host failed to meet the mission, it would die unless they have special ability to restart like Cheongryeo.

## Appearance

This entity called system have no certain form or appearance, and it also could not converse with its host in reality. There is no way to know whether there is a abnormality mission or not, what the specific conditions of the mission are, and no reward is given even if the mission is cleared. However, Moondae was able to know about his own status abnormalities because of Status Window.

However, the System has its own outer-dimensional space where it could converse with the host and stores data (memories/conciousness) of people from every other timelines.

## System Hosts

The series focused on the story of Cheongryeo, Park Moondae, and Kwon Heeseung as hosts. However, it is mentioned that the host before Cheongryeo (an unnamed old man) had successfully accomplished his mission.

 **Special abilities** | ☆ Regress to before his debut whenever he fails his missions

## End of the System

During the process of returning from 'Reality' to original world, the System seems to be erased and disappear due to the action of Big Moon and Seon Ahyeon, but in fact, it is still alive as fragments. Afterwards, the System makes Park Moondae (unknowingly) collects its fragments, resulting him to fuse and become one with the system. At the end, Big Moon send the fragment back to distant past, making it stuck within a timeloop and preventing it to appear in the future.

## Reference

1. ↑ It doesn't have to be right next to the previous host, some distance away are possible. There seems to be no time limit, and it seems to have a few days to spare before parasitizing the next host.
2. ↑ For example, Moondae regressed for 3 years (or that's how much his memory worths) and should get 4 missions
3. ↑ During the end of 'Wishze' reality arc, it was described that Moondae initially only heard the System as voice without physical form, before it took the form of Cheongryeo
4. ↑ Moondae was able to converse with the Bae Sejin before the regression (STier Bae Sejin) after finding his memory within this space
5. ↑ In his 5th life/regression, Cheongryeo is said to expose himself as someone who came from the future to the media. The previous host, who heard this, came to meet him. He revealed that he had also came to the past and the 'future' he came from had been around the time Cheongryeo would start his regression. By the time Cheongryeo reveals this to Moondae (Year 3), the man has passed away.
6. ↑ Because Ryu Gunwoo & Park Moondae died around the same time and Park Moondae/Big Moon (supposed to be the new system host) made a wish related to Ryu Gunwoo, the system made a mistake by putting Ryu Gunwoo's soul into Park Moondae's body. Thus, Big Moon's soul was merged (and influencing) the system while Ryu Gunwoo's existence was erased from the world
7. ↑ Mission Constitution (S)