Re:zero restarting life in Monogatari

Subaru has lived a very long life, and to make things worst he is trapped in a world with his worst enemy, that haunts him every step of the way, but due to the world dying he decided that his time here was no longer needed, hence fort he switch existence with Araragi Koyomi, now how will the new Subaru live his life in the world of Monogatari.