Kevin, but with little Ellie as a male mother on Star Rail

After entrusting the fire of [Endgame] and [Humanity] to the girl who was his descendant, Kevin thought he could follow his companions and die without regrets.
But when he opened his eyes again, what he saw was a planet covered in ice and snow, and the people who were struggling in it.
This is a world with almost no future and hope, but the guardian named Cocolia showed him his determination to abandon everything.
Just when he finally planned to get tired of this life again and try to change this unreasonable world, several pioneers who claimed to be from aliens approached him.
Before they could explain their purpose, a pink gadget with wings rushed over in an instant, shouting something misleading.
"mom!!!"
"....cool"
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ps: The final chapter is a native Kevin, with a serious style of writing...but it does not rule out other funny parts.
I will consider adding other Bengsan characters later.