I think So beautiful's MV is based on Dr. Jekyll and M. Hyde, but here it's DPR IAN and MITO :
Look at the pic it's blurry like there is 2 persons here, I based all my theories on this tree and moon illustration

The thing is that we can see 2 different personalities/persons co-living in the same body, and they take over the body at specific times : IAN the host and MITO (Moodswings In That Order) the alter ego/the dark side

It's a cycle following the moon, the day he wakes up as IAN but when the night comes MITO comes out, and it repeat itself every day

Everytime IAN wakes up mostly outside, he seems really lost and confused, not walking straight

But when MITO wakes up he seems happy to be out and to do whatever he wants to do and he's soaked

And there is some scenes when we don't know who took possession of the body, one of the hands is shaking indicating that the both of them a present at the same time

The corridor scenes seems like we're in IAN's brain, openings doors of his mind

One of these doors opens up a rooms were a women is standing

He goes to see the woman, she push him and he falls into some kind of water, she seems to be the trigger, that's what makes MITO take over IAN's body, MITO wakes up wet like the water is what allows him to to the control

And then IAN enters in some void and tries to escape from it
It's like he's put aside in his own body to let MITO come out

The living room it's the most confusing place in the MV it's in disorder and might represent IAN's mind

I thing the spinning might represent the fact that he can't escape this cycle

This moment is kinda critical bc I think it indicates that MITO is trying to take permantly the contol of IAN's body and try to put him in one of his mind room forever and his the reason of the shaking hand, he's taking more and more place in IAN's body like a parasite

His right side is Ian but with MITO written on his right hand nails meaning that he still part of him
His left side is MITO (white eye) but with Ian's eye on is left hand meaning that Ian is part of MITO
They're 50/50
When one hand is shaking that means that the other part of him

is fighting against the part that is awake...

The end scene : the left hand is taking a gun but for what? suicide ? to kill someone? To kill one of the 2
I do think it's MITO's doing, he's trying to kill IAN to have his own body

Anyway that's how I interpret it
Here is my first thread on my theories surrounding this comeback https://twitter.com/xtiansdadjokes/status/1317944437385854977?s=19

DON'T FORGET TO STREAM THE MASTERPIECE THAT IS SO BEAUTIFUL

And I think that he's addressing mental disorders just like he did in this...

STAN GENIUSES! STAN DPR!!

And I would like to thank @CherryCTYL @moonieed @lolipopsprout @MissMaryCherry w/o them I wouldn't have been able to come up with a complete theory love y'all

To be continued...
Rendez-vous the 31st

Remember :

*I forgot to add but the living room seems to be the control center of IAN's body meaning that the one present in the living room is the one controlling the body
*and the void is like the subconscious or the limbo of the mind

*MITO : Moodswings In This Order
Sorry for the typo and the other ones in the thread
PS : They told us already... they always leave clues

King Christian spoke https://twitter.com/dprarchive/status/1320736224764661762?s=19