Their hatching time varies from either within 5 years to the longest being 20. They're always treated with EXTREME CARE. They're not as fragile as normal eggs, they can withstand falling once or twice but that doesn't mean there won't be repercussions

Chibis age just like their larger counterparts do. They also have the same body as humans, blood, guts and all....but only covered in all that pudge. Very squishy, huggable, but very tiny.

About them being tiny pure mirrors? They also show the pure emotions that their larger counterpart is showing even if they're at different parts of the world. For example, if they're hiding their anger, the chibi will not hold back in showing it.

One very IMPORTANT THING about the chibis, is that since they're linked to their lorg counterparts. If they are in pain, the human version will feel it at the same exact place the chibi was hurt and vice versa. And in worst cases, if the chibi dies, the human dies along with them

Meeting their soulmates. When the larger counterpart of the chibi is close, probably 500 meters away? They can feel it. They become like little GPS trackers and they feel this sudden huge burst of euphoria and alertness.