E.A.r.T.h  

EArTh, Earise, エアリセ, E.A.r.T.h the Endness, エアリセ∞（the endness）

The narrative begins with an elderly man named Jain who has a unique past known only to a select few individuals, including a mafia boss. One day, while walking on the street, Jain discovers a young girl lying unconscious on the sidewalk. Rather than leaving her there, he brings her into his home and provides her with shelter, food, love, and care. However, the question arises: who is this girl, and does Jain fully understand the implications of his actions?