Title: Soul Link
Alias: ソウルリンク
Release date: 2004-12-17
English release date: 2009-12-28
Developer: Navel
English publisher: MangaGamer (the game licence has expired and it's not available for purchase anymore)
"Soul Link" was one of the earliest games released by fledgling MangaGamer. Initially there was a fan translation project, but then the translator went to work for MG and the game was eventually released officially.
