Arknights: The Commander Leads the Squad Through Terra

After countless days of anticipation, Chu Yuan, a higher-dimensional being, finally reached the day of his retirement. He was happily imagining his retirement life in higher-dimensional space when his superior gave him a sudden kick, sending him into another timeline along with his “retirement gift”: a System.

At first, Chu Yuan was pretty excited when his superior said he was being sent to “Terra.” After all, as a member of a higher-dimensional special operations team who had spent years traveling through dangerous regions of different dimensions, wouldn't a place where hulking brutes tore into one another every day let him enjoy a wonderful life of tearing apart Slaanesh's followers with his bare hands, kicking Tzeentch, burning Nurgle alive, and marrying Slaanesh? And that's not even mentioning how his Frost Dragon Spear had carved a path through the Cthulhu Mythos. Even the Yellow Skins would think twice before taking him on.

Then, the moment he landed, he heard a broadcast: “The Reunion Movement has now been completely repelled by the Ursus Empire. Citizens of the Ursus Empire, the Reunion Movement is nothing but a ragtag bunch. The relevant departments are prepared to handle the situation, so please don't worry...”

Wait... The Reunion Movement? Which Terra is this?

P.S. This is my first time writing, so please bear with my writing. Also, the author is a bit unhinged. FrostNova is definitely getting saved, but whether Mephisto lives is still up in the air.