What does awakening espers do?

Awakening Stones can be used to awaken espers that have reached their max Lv.
Awakening adds more stars to an esper and allows their max Lv. to be raised.

Awakening up to 3★ will expand the Ability Board and give access to Status Ailment Resistances.

Awakened espers' levels return to Lv. 1, but they do not lose any SP.
Unlocked Esper Training Board panels are also carried over to the awakened esper.