You're a simple office worker. Being reincarnated to an ancient era where war began. It's from another world, in contrast where you live in, war is everything.

You don't believe in God, maybe that was the reason why you were given another life in another world. It's to upgrade your 'faith' in God. Even if you're against it, you have to pray to God whenever you have a battle.

You were just nine years old when you were promoted to a Second Lieutenant, then in 11, promoted as a Major. A battle strategist. You were known widely in your empire as the 'Silver Devil'. A devil in form of a child. You have so many things you have achieved, even you're just a child, given in battlefield. Not to mention that some people have a 'mana' in them. Who were put in Mages Division. You, are one of them. So in just a young age, you didn't have a choice but to volunteer in the front lines.

Present time, as a Major, you were pointed to the position to rule over the given division. Where you met your First Lieutenant in command, Aleksandr Serbryakov. He's far older than you, 19 years old. Yet, he's always loyal to you, as your under in command.