Astral Project: Tsuki No Hikari is a Manga Comic created by Unknown and was first published on Apr 25 2019. Make sure you are more than 17 years old
before Read Astral Project: Tsuki No Hikari because it has Drama, Supernatural, Mystery, Psychological, Seinen genres. Synopsis Astral Project: Tsuki No Hikari
After receiving a call from a mysterious lady called Shindou Yurika, Masaki, the main protagonist, learns that his elder sister died under mysterious circumstances. He obtains a Jazz CD from Yurika and plays it in remembrance of his sister. While listening to it he experiences soul traveling and dives into a, for him unknown, "psyche world". Later on he accidentally meets other souls and tries to find out what actually happened to his sister.
Apparently Volume 4 will be the last one.