In Soul Society, I Followed Aizen and Became the Soul King

This book is also known as Undercover with Aizen: Sorry, I'm the Final Big Bad.

Beiyuan transmigrates into Bleach as a Soul Reaper.

Then he accidentally stumbles upon Aizen's conspiracy and is forced to become one of Aizen's subordinates.

Fortunately, the Big Bad System appears.

As long as he stays undercover by Aizen's side and completes missions, he can earn rewards. The higher his mission rating, the better the rewards.

Beiyuan thinks, how hard can that be?

"I asked you to assemble the Espada, but you took over Hueco Mundo?"

"I told you to steal the Hogyoku, so how did you end up conquering the Soul Society too?!"

"The Quincies invaded, so why did you kill their leader as well?"

When the dust settles,

Aizen gives Beiyuan a sincere smile of gratitude, then draws Kyoka Suigetsu on him.

Seeing this, Beiyuan drops the act.

He slicks back his hair and says, "From now on, I shall stand above the heavens!"

Aizen: Damn, isn't that my line?

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.