Indigo Zap and Sunny Flare are best friends.
But they never go out from home so one day Indigo decide to go to the forest but she wanted Sunny to go with her...

Cover art: http://a-kwiatkowski.deviantart.com/art/Dark-forest-342663014
I added Sad tag because some moments are sad.
Large part of the story is not in the forest - Part in forest is in Chapter 1