Hello Charlotte EP3: Childhood's End, the final episode in the main story, will be released on 05/01/2018.

If you're new to the series, you can play the episodes in their release order:

EP1: https://etherane.itch.io/hello-charlotte-ep1
EP2: Steam
Delirium: https://etherane.itch.io/hello-charlotte-delirium

See you soon!