Future Mai (Nikon23's Extended Universe)

Rain is the wife of Future Trunks and Mother of Future Jin, that first appears in Dragon Ball SF "The After Future of Trunks and has a Cameo appearance in Dragon Ball SF.

Early LIfe
Rain is born in the 767 Age to her parents. on May 12th the Earth is overtaken by the Androids created by Dr. Gero. in the 785 Age, Future Trunks returns from the main timeline and defeats the Androids and the Imperfect Cell and restore peace back onto the world. some time afterwards, Rain meets Future Trunks and the two start dating.

The After Future Of Trunks:
serveral years later, Future Trunks married Rain, and they have a son together named Future Jin. during the 25th World Martial Arts Tournament, she observess the competion with her family and friends until it;s interruppted by the threat of the Future Majin Buu. she along with almost everone else is killed and later revived by the Namekian Dragon Balls.

General Copper Saga Through Super Android Saga:
Some years later, her husband is killed by the Androids created by Future General Copper now reconstructed into Android 24 and Android 23. her husband is later revived by the Namekian Dragon Balls, and she continue to live in peace along with her family and friends.