*After completing all of his written exams, Rowan decided to seek out the treasures hidden in the academy by the last hero for his successor or someone who can prove their kind heart. Summon Holy Sword as a skill only a Hero and the previous hero's choose could have as there were two Holy Swords that counted each other. The Holy Swords were made in such way to stop heros who had turned evil. One of the Holy Swords were lost after the previous hero's death and was at his grave under the academy*
I was able to uncover the second Holy Sword because of reading ancient books from a forgotten corner of the academy's library. The history books were changed in the main story and the second Holy Sword was tagged Demonic, which leaded to the player needing to destroy it. Unlike the game where I didn't think much of it or the reason why a Demonic Sword would be in a Hero's Grave, but now that I look back at it, all of it was a set up towards the world's doom. Good think that I remember how to complete every single one of the tests in the Hero's Grave Secret Dungeon as well as hopefully am able to obtain the other holy sword before Aither finds it through the main storyline. According to the story, he would get to the other holy sword on the night of the full moon which is 2 days from now and 5 days before the Finals for Season 1 of the main storyline.
*Seeing that he had 2 days, Rowan decided to take a sickness leave and secretly sneaked into the Academy's Achievement Room which held the secret passage to the underground secret dungeon where the last hero was buried with one of his swords. Finding the correct order of the smalls hero statues on the podium in front of the secret pass was easy as it was the reverse of how they were placed or reverse of their order. Sneaking into the secret entrance, Rowan was able to also locate a Lever to close an open the door from inside. Arranging the statues back as they were before Rowan entered the secret passage and closed the door behind himself to prevent alerting anyone. As it had been over a century, the previous hero's secret grave had been forgotten in time.
Going deeper down Rowan deactivated traps and navigated through the first obstacle in his way, a maze. After nearly getting lost, getting his head busted by a magic arrow and falling down a spike pit, he had finally crossed the maze. Then came an giant pizzle which obviously looked to a balanced mix of science, magic and a gamer's mind. Seeing the previous hero to be a hard core gamer to make such an intricate puzzle with no one's help, Rowan couldn't help but be motivated to solve the puzzle. After multiple trial and error, he was able to complete the puzzle in 7 hours breaking even his own record in the game. Passing through he was faced with some traps, narrow tunnels and a lot of walking. It was good that Rowan bought some food with him knowing it would take him more then just a single day to complete the whole things, while also setting everything in its previous way and feeling untouched. After going through a series of different obstacles, traps and tests, he finally entered the hero's grave and was faced with a tomb.
Opening the tomb and skeleton layed still with an rusty sword in his hand. There were treasures scattered around everywhere, but Rowan's interest was more on the rusted holy sword than any of the treasures. Pulling out the sword and shaping the hero's skeleton to look untouched, even without the sword. Rowan grabbed the minor elixirs and used the secret exit to emerge in the academy's garden. It took him a day and half to obtain the holy sword, after which he sneaked into his dorm room. Once in, he could finally take a bit of test from the hectic day.
Next day, he went and used his Cheat System's appraisal ability to read about the Rusted Holy Sword from the Hero's Grave, finding out that it was made using Void Magic of some form to reverse effects of the Holy Sword. Knowing this, Rowan was made to believe that the heros before the Void God's sealing asked the Void God to make a weapon to stop evil in themselves as Humans no matter how kind has darkness hidden inside somewhere. Rowan was also able to kind out that he could absorb the holy sword skill from the rusted holy sword, but unlike the "Summon Holy Sword Skill" which allowed the user to summon a growing weapon, Rowan's new skill "Holy Sword" allowed him to turn a weapon into a Holy one. A holy weapon by Rowan's Skill was turning any weapon he wanted into a Holy Weapon for a period of time because of his Cheat System.
As soon as Rowan absorbed the rusted holy sword, it turned to ash. To try the skill, he grabbed the sword that he got forged for him and turning it into a Holy Weapon had it glow a light golden glow. He decided to increase its efficiency by training from the next day on because he was out of strength and stamina to try anything. Following that the next day he found out that the sword couldn't cut a tree in a slice but make it grow a branch. One thing was clear, the "Voided Holy Sword" to say was reverse in nature. He could reverse heal something pure and damage something that's impure by heart, make it not a combat skill but an utility skill instead which can be a double sided sword depending on the person it's used on which was also a good way to test a person's heart. Then started the wait for the Final Exam of Season 1, the Chaos that was about to begin and Rowan was not aware because the things were just starting to go off the rail from the Main Storyline.