Max Level, Minimal Role: Seriously, System?

あらすじ

After a failed transcendence, I'm left with only a year to live as the system finally kicks in. Challenge accepted! To cling to life, I masquerade as a novice menial in the weakest sect, aiming to lay low. However, my plans take a turn when I stumble upon the enemy sect's holy maiden plotting to overthrow the order?!