In the middle of the bloody battlefield, Rubian remembered. This is the war novel! If things continue like this, Duke Leviathan Zibert, the hero of the continent, will die. And the terrible war will begin again…! “It’s unfair that it’s rotten on the battlefield, but you want me to end it with massacre?!” I want to live! I don’t like war anymore! The only way to escape the massacre ending is… To sit next to this guy called ‘Hero’ and keep an eye on him so he doesn’t die! Then… “Uncle, do you need the youngest child at home?” I’ll stick right next to you and protect you. So, uncle, please save this world! ✿ To the Duke family who happened to become my new family, I ended up hiding a lot of things. From the flashy title of ‘Wizard Who Was a Child Soldier Who Ran Away From the Magic Kingdom’ Although it was unintentional, even my gender…? “What kind of affection to call me Old Duke! Just call me Grandpa!” “…Can a fairy also be a younger sibling?” My family who loves me without even knowing my secret. However, at some point, I started to feel anxious. ‘If they find out that everything I did was a lie, will people still care about me the same way then?’ My heart, which was tickled by the affection I received for the first time, is now starting to sting. ✿ ‘Is Ruby hiding something?’ Even though he hoped it wouldn’t happen, Leviathan couldn’t help but think about it. My precious child that I need to protect now. However, the darkness that can’t be covered by Rubian continues to strike. My beloved jewel, Ruby. What on earth are you hiding?