I Was Told to Perform an Exorcism, but I Ended Up Subduing the Princess, Her Mother, and Xing Tian

In 3026, monsters and demons from many ancient dynasties have been revived. Humanity awakens Summoning Devices, calls forth armor, and forms the Armor Alliance to fight back. Xu Lin fails to awaken armor. After graduating, he joins a prison as a trainee guard. From the start, his superior makes life difficult for him, ordering him to put on a Taoist robe and perform a ritual in front of the beautiful Princess of the Yu Dynasty, whom they have captured. The Taoist arts are fake, and he can’t summon armor. Isn’t this just a death sentence? Luckily, Xu Lin awakens the System that makes him stronger whenever he is attacked by monsters and demons. The princess throws a punch. [Attacked by a monster, Palm Thunder comprehension +1] The princess transforms into a fair-skinned beauty and tries to seduce him. [You are attacked by a monster’s bewitching charm, Palm Thunder comprehension +2] Xu Lin: I’m invincible against monsters and demons! Feiying Armor: Finishing Move! [You are hit by a monster’s finishing move, comprehend the Five Thunder Generals! Comprehend the ability to summon Erlang Shen into your body!] Xu Lin: Feiying Armor! I could tell at a glance you weren’t human! Xingtian: And what about me? Xingtian’s Ultimate Heaven and Earth Finishing Move! Xu Lin: Summon Erlang Shen, Yang Jian, into my body! From then on, monsters and demons scream in agony every night in the prison. When the prison’s higher-ups come looking for the source of the noise, all they see is a purple-robed Taoist priest with a peachwood sword strapped to his back, a compass in his left hand, and Palm Thunder gathering in his right, grinning eerily as he walks down the cellblock. The monsters and demons can only huddle in a corner and tremble.