Chapter 1: A girl in the rain

In rain of despair, he found her. A Traveler with lost powers, Lumine must adapt into the new world while recovering said powers. Issei, ever a bleeding heart, is willing to help her in that endeavor and comfort the girl in her despair. But first, they must pass the single biggest challenge yet: Language barrier.
(Issei X Lumine x Rias)
ALSO STORY NOT MY ALL CREDIT AND RIGHT GO FOR Hellifrit THE ORIGINAL AUTHOR
AND WITH THE ORIGINAL AUTHOR OF DXD