Into the Forest of Fireflies' Light 蛍火の杜へ (Hotarubi no Mori e)

Alternative Name: 萤火之森 (Yíng Huǒ Zhī Sēn)

Genre: Romance, Slice of Life, Supernatural, Ghosts/Spirits

Description: 

As a child, Hotaru lost herself in a forest near her uncle's place that she visits every summer. There, she had a fateful encounter with a spirit, who helped her even though he would disappear if a human being touches him. She began to visit him every summer, even as she grows; while he waits for the summer to come, for their time together to flow again

Original Run: September 5, 2011

Studio: Brain's Base

List of Songs: (directly to CrimNight Muse Garden)

1. Natsu wo Miteita                         [Ending]

Manga

1. Hotarubi no Mori e

Published: Jun 10, 2002 – March 24, 2003

Volume: 1

2. Hotarubi no Mori e Tokubetsu-hen

Published: September 5, 2011

Volume: 1

3. Hotarubi no Mori e Aizouban

Published: June 24, 2003 – February 10, 2005

Volume: 1

Here is the preview: