Thermal Equilibrium

Q, a stern and neglected diarist, and Z, a spacey and nihilistic genius, are high schoolers in their sophomore year when their lives change forever. What starts off as a studying agreement ends up putting their mortality in the hands of gods- and leads to maybe even becoming gods themsleves. Throughout all the chaos of fighting for their lives and struggling with their mental health, Q and Z grow increasingly closer until a conflict between them affects the structure of the universe itself, and threatens to ruin their friendship in its entirety.
After all, the term "soulmate" is not necessarily just a descriptor for a relationship.
It is also a warning label.