Attack on Titan: Intertwined

When two different universe intertwined, what does it brings into the hands of the future??
Levian Ackerman lives in the Modern Alternate Universe without a Titan, together with his family and friends but because of the unexpected accident, he found himself inside of the wall Maria in Paradis Island facing a life and death situation in front of Titans, rescued by survey corps. Is there any chance of survival? How his family and friends will save and rescue him back to his original Modern world without Titans?
Modern Alternate Universe characters intertwined with Paradis Island people and Titans.
English wasn't my mother language, forebear the wrong grammar and spellings. Thank you.

Disclaimer: I don't own Attack on Titan it's belong to Hajime Isayama. Picture belongs to it's perspective owner, just using it for reference only.