Meet Yuki Sakamoto.

Sixteen, easily distracted, and a runaway. Coping with the loss of her grandma seems like a mountain she struggles to climb. She hasn't even had the courage to visit the family grave she's buried in.

After a series of misadventures, she meets another girl in an abandoned house one night.

That girl?

Kenjiro Furukawa.

Seventeen, wired when not on her meds, and resident of the house. The dark strikes fear into her heart. She has a nightlight in almost every room of the house.

As the days pass, their connection and feelings for each other strengthen through conversations, stories, and outings. But can these experiences help them rise above their struggles?