Once again we are thrown into the world of Childhood Friend vs New Girl! However the difference this time is that as the story progresses, the reader is truly split between the two characters. If this had been a conventional story, the story would have been leaning more towards the newer girl. In this case, compared to your normal highschool romcom, there is the additional mystery as well as life and death, and a few comedic moments.
In terms of balance between the girls, it is obvious that there is none. HOWEVER, it felt like a MASSIVE tug of war between the two female characters, with readers having a hard time on who to support. It is a truly engrossing and emotionally difficult manga that uncovers more and more as the story progresses.

Before I was reading this manga, just from the synopsis, I was expecting new girl to win. That would be pre-manga thoughts, from a logical standpoint. If you are like me, a hopeless romantic who believes that love is absolute, then as the story unfolds, we lose our logical thinking and would watch the world burn just for these two destined people to get together.


Spoiler alert:
If you have read the synopsis, then you would know there are 2 choices but by the time I am writing this, a new girl has been introduced, giving a 3rd choice, (I shall name her Random Girl). The 3 choices are:

1. Childhood friend but has the world could be destroyed if MC enters a R/S with her
2. New girl that has a human appearance but isn't human, loves the MC and wants the MC not to enter a RS with Childhood friend so as to save the Earth
3. Random Girl that appears to comfort MC when he is split but might have a hidden agenda.

Initially, the manga is written such that the New girl is the obvious choice and saving the world is more important. However, as the story progresses, the story starts to show the past of the childhood friend and the despair she has, leading the reader to support the childhood friend more, even though the reader is fully aware of the consequence of doing so. Random girl comes in and at first it seems she may be a better choice. However within the next few chapters, it is revealed that she would probably be the worst choice.