Aaron Fielding, a young man who volunteers at his local pet shelter is killed by a monster. He is given a new life and a mission by the goddess Aria: Find how monsters are transmigrating to other worlds, and put a stop to it!

When two girls at the age of 16, go into what they believe to be a Haunted House, strange stuff starts happening. What is the haunted house really? Who will they find? And most importantly, Will they come out alive?