Story
Twenty years ago, a wormhole suddenly appeared above Earth's orbit and opened a passageway to an alien planet full of untapped resources and mysterious life forms. Two decades later, Team Sierra, a small military squad of security specialists working for the Tiberius Coke Corporation, are thirty miles away from home base on that planet when their leader, Chief Yugi Oishi, spots an SOS flare coming from a theoretically abandoned mine.
Synopsis via AniList (English).
Preview
Promo video for this title.
