The Vault: A Sibling's Tale

After millions of years the universe was filled with powerful warriors, geniuses beloved by mana, and unbelievable marvels of magical engineering. But the struggle towards the next step would never end.
Amidst constant war, plots, and intrigues one alien race discovered the siblings Lilly and Iain who had been peacefully living on Earth. Falsely recognized to be refugees of war, the siblings could narrowly escape through their parents’ sacrifice.
Realizing that the aliens wouldn’t stop hunting their prey, the siblings had to enter the universe and connect with ‘The Vault’.
Only this marvelous building could grant humans the power to contend with the superior alien races.
But will it be enough?
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I hope I can convince you to follow me and the siblings on a fascinating journey. It will be rather slow paced with much time for world building. Together we will discover unique environments and exciting plots. Naturally we won’t miss out on tense fights fueled by a power system which doesn’t define the weak and strong too clearly.