No other details have been shared about Dawn of the Deep Soul, but it looks related to the sequel project that was revealed in 2017. The teaser promo a few years back showed new footage staring an armored character with the same silhouette that is in the new key visual.
Akihito Tukushi’s hit web manga series centers around Riko, an orphan who dreams of becoming a great Cave Raider like her mother and to solve the mystery of the Abyss. The Abyss is an unexplored cave system that is home to strange creatures and artifacts. Generations of explorers have been drawn to the Abyss, but the deadly creatures and “the curse of the Abyss” leads to a high mortality rate. Despite knowing the risks, Riko is determined to descend to the bottom of the Abyss.
A 12-episode adaptation produced by Kinema Citrus ran in the Summer 2017 season. Kinema Citrus is also producing the two compilation films — the first premiered on Friday and the second will premiere on January 18.