*Rowan could believe his eyes. The so called "Hero" had sacrificed many creatures, summoned the Demon Lord's Daughter and kept her captive in his room. As the hero's living quarter are seperate from the other living quarters, no one found out his deeds. The Demon Lord didn't just started attacking the continent out of nowhere for no reason, he was looking for his daughter and looking at how badly she was injured, one thing was clear as daylight, Aither El Hero or to say Aither who received the title of being chosen Hero and the same middle name as the Royal Family was planning taking over the world as the next Demon Lord from the start. Rowan couldn't just not do anything because he wanted peace in the world and had already decided to kill the hero when needed, but after seeing that he was the reason why the world was ending, Rowan had decided to execute the hero when he leaves the academy because he is protected by the whole empire while he is here.
Rowan's system activities and notified him, "As the user had found the real reason for the world's end, the system will reward user with 1000 points and an option to heal the Demon Lord's daughter or to obtain 10000 points as well as the hero's exclusive ability to kill the Demon Lord"*.
Ok, these options are actually crazy. Either choice will heavily impact the world. Option 1 will cease the up coming Great War while possibility making him a public enemy and option 2 will allow him to kill the Demon Lord without the Hero, but the up coming Great War will have many sacrifices. Neither is good and I don't want to gamble my life on chances because option 1 is a complete gamble, but option 2 is just everything that happened before with me being able to just completely replace the hero. Option 1 is a gamble and option 2 is the Great War which means end of even the possibility of peace. I will have to take the gamble, option 1 it is.
*As soon as Rowan chooses his answer the Demon Lord's Daughter is complete healed, the chains break open freeing her and she falls on him when he tried to catch her. A black hair beauty with less demonic and more draconic horns, sharp teeth like a shark's, claws that barely doesn't pierce thought his skin and the body weight of an real demonic beast. Rowan was stuck, really stuck, like stuck under a truck. It wasn't that Rowan was extremely weak, he had grown about half as strong as a human from being someone who couldn't even hold a sword without breaking his wrist, but the lady on top of him was just anyone. The Demon Lord's daughter, a Half Demonic Dragon having a juvenile dragon's weight and to say the least, Rowan was lucky he had trained or his ribs would have collapsed it he hadn't started to train and learned the family's secret fighting style. As soon as the Demon Lord's daughter woke up in a few minutes and looked at the man laying under her. She face was blank and she didn't do anything but just stare at him. Their eyes meet and Rowan saw her golden eyes that were that of a dragon, it felt like her eyes were staring into his soul.
After their short but brief meeting, she got up, looked around, looked at him again, thanked him and left. For a few minutes Rowan was confused, he had expected her to attack him and maybe even bite him or be anxious, but the Demon Lord's daughter was just nothing like he imagined. A quiet, curious, well mannered kid that didn't mean anyone harm and for sure didn't seemed to have any emotions in her eyes. When Rowan left the hero's quarters, he found the Demon Lord's daughter wandering around in the academy's garden which was just a bit far from the hero's quarters. She was just standing in the garden, her feet on the grass and his face as emotionless as he saw a few minutes ago. For some unknown reason Rowan knew he had to get the Demon Lord's daughter back to the Demon Lord before anything bad happened, but there was a problem. In about 10 minutes the first event was going to commence and the Demon Lord's 3rd commander will burst into the academy with troops*.
Hey, what's your name? Trust me for once and I will help you go back to your home, but you have to convince your father not attack mankind.
*The Demon Lord's daughter stared at Rowan for a few seconds and agreed and told Rowan her name was "Eve". Then started the rush, using the cape he was wearing Rowan covered Eve's head hiding her horns and rushed her out of the academy just in time as the Demon Lord's 3rd commander was about to break through the Holy Barrier that was ignored because of the entrance ceremony and the conflict between the Holy Kingdom and the Empire. The 3rd commander was sceptical about the situation, not to mention a human helping the Demon Lord's daughter to escape captivity and other humans, but left silently because his task had been accomplished. As the situation settled Rowan headed to his quarters in the Royal Academy's Nobel's section and woke up the next day to a raven banging his window. Opening the window it was revealed that the raven was just any raven, but a magic beast that was under the command of the 4th seat of the Demon Lord's commanders and it had a message. Opening the message Rowan saw that it was a letter from the Demon Lord himself about thanking him for saving his beloved daughter as well as agreeing to not attacking the continent, but the wild monsters were not under him and they can't be stopped by his commands*.
So basically the attacks from the Demon Lord before his daughter was abducted by the hero was not really attacking from him, but just wild monster attacks that have nothing to do wait him. In fact he has even more ethics and sincerely towards his family and people then human nobels or royals, not only that he was also humble and down to earth for a villain. Things weren't setting in place properly, not even slightly.