Anti-War Game: Starting from Normandy Campaign - Chapter 48 Ace of World War II...!

Life in a noble house isn’t all luxury.Luan Meskevela never expected to wake up as the third son of a powerful duke. But when he’s transported into the world of Sigil Online, he finds himself gifted with two rare and powerful Sigils—abilities that make him a force to be reckoned with.Now, Luan's got more than wealth on his mind. He’ll charm a priestess, exploit a merchant guild, and maybe even befriend a spirit or two—if it gets him a better vintage of wine. With a mix of charm, wealth, and newfound power, he courts beautiful women, explores the world around him, and builds connections that could shape his future. Yet, beneath the surface, political intrigue and family rivalries threaten to disrupt his carefree life.In this new world, Luan plays for the thrill, not just for power. But as he enjoys the perks of his life, he soon realizes that every decision has consequences, and the people around him may not always be what they seem.

“If I don’t die… I swear I will act on all my evil thoughts..”

Not exactly everyone’s typical thought when they’re about to die. What will a cowardly young man do when reincarnated with the evil powers to redefine his destiny? Can the natural kindness of human nature triumph over evil? Will he become the cold-blooded demon king of legend, or will he forge his own path and rain down another kind of terror?

- Description from novelupdates

There was a Senior Brother and a Junior Sister. One of them was transmigrated to this world and had cheats while the other was the reincarnation of a Great Emperor.