In Jainism, the term that seems closest to what you might mean by “the first ara” is an Arihant (a perfected soul who has conquered all inner enemies and has conquered karma on the path to liberation). When such a soul dies, it attains complete Moksha and becomes a Siddha (a liberated, non-material soul).

What happens after death of an Arihant (the first Ara):

• All karma is completely shed; there is no remaining bondage.
• The jiva enters Siddha-loka, a realm of eternal, perfect bliss and infinite knowledge.
• There, the Siddha remains forever in a state beyond birth and death, unaffected by time or aging.

Notes for clarity:

• In Jainism, there are two main sectarian contexts (Digambar and Shwetambar) and they sometimes describe details a bit differently, but the overarching idea is the same: a fully liberated soul ends all karmic bondage and resides in a formless, blissful state.
• If you meant a different term by “first ara” (for example, a specific era, or another concept in Jain cosmology), let me know and I’ll align the explanation precisely to that term.

You can read more about liberated souls and Siddha-loka on the Jain Knowledge site here