Up to ch.83 we knew there are two traitors in Yuichi team. One is already exposed as Kokorogi but the other one remain unknown. I have theory for that below, bear in mind that it will be a long read

- YAMAGUCHI MIKOTO UNIVERSE THEORY -

Are you familiar with Tomodachi Game mangaka other work? You guys remember Shinigami Onegai? Or you guys remember Mayonaka X Giten? All created by same mangaka Yamaguchi Mikoto and I propose that those manga share the same universe

This is my original theory regarding shinigami onegai ending : Shinigami Onegai share the same universe with Mayonaka X Giten

Not only that, actualy Saaya is the very first one who created the the body swap method in Mayonaka X Giten. How Saaya creates it?? Probably with similiar trick with the baldy Kuroneko (check chapter 3 of shinigami onegai)

Why Saaya creates it?? To save Minamida Azuma. Minamida simply swaping into better body and he will be immortal. Ofcourse one of the unique addition of body swapping in this universe is super power. Probably Minamida get a power to silence Saaya. Probably something like "global memory erasure" so will has no effect in the rule of Sayaa-cannot-lie

Now, body swap is a cheat power in this universe law because shinigami also count body as sinner, not just soul. Remember that Kureha-Shiroha arc? If the possessed innocent kid kill the father, she will also be blamed for murder. What if someone (let's say Aida), swap body with another one (let's say X), and kill alot of people (let's say Shizuka Family)?? Aida will still be blamed and also not be blamed. Which explain the main contradiction and mystery in this manga

If we open up the possibilty of body swapping, we got alot of new scenario and explanation of confusing thing. Combine body swap with "global memory erasure", it explain about the last wish contradiction for Aida's case. And since body swapping also grant the user super power. It explains why Minamida little brother so keen for Aida's body (check last chapter of shinigami onegai). He wanted power that reside in Aida body.

So.......why I put the theory here? Because I also claim Tomodachi Game share the same universe. And the real traitor is : Yuichi........But not our Yuichi.

In mayonaka X giten we learn about double personality due to body swapping. Yuichi has double personality. one good and one bad. He got them from body swapping goes wrong So instead of swapping one personality, two got stuck in one body.

And this is the real traitor. Who know, it could be Yuichi's mom or Yuichi's dad

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