From Yen Press:

The manga adaptation of the hit light novel series enters its second chapter! Summoned by a boy who calls himself God in a world where games decide everything, the prodigy gamer siblings Sora and Shiro quickly rise to the top of human society. Having secured a future for the Kingdom of Elkia and humankind in this world, the siblings set their sights on a new prize—the Eastern Union. It's finally time to challenge the other races!