Crystal Girl.

A seventeen-year-old girl hasn’t left her room in an indefinite amount of time. Those like her call them hikikomori, they are teenagers who decide to build themselves a little prison, leaving the outside world outside the door. Her routine is broken when, online, she meets Dev, a boy ten years older. The two fall in love immediately.For her it is the first love. In order to meet Dev, she must leave that cage. But there is someone willing to do anything to prevent her from getting out of there.