One Arcane World to Another

A seed is first put into the dirt, watered, and sunbathed. As it germinates and grows, flowers bloom, sometimes even bear fruit. Alas, it will wither, and the cycle repeats.

As an orbital oddity fell from a portal, landing near the Esper Union of Dislyte, its branches slowly tore away to reveal a young boy inside. With a mask on and an aura of a sort of god. Where does this person come from? What is his purpose?
Will he either protect this arcane world or let it go haywire throughout?

(Dislyte X Male reader)