Transcending Dreams - Chapter 53B2 -

[System Activation Complete][Welcome, Host, to your new world.][You died, and your soul has been transported into a new world.][Mission Assigned: Build the Greatest Empire in This World]After a fatal accident, Aric awakens in a strange new world, now in the body of a seventeen-year-old half-elf with nothing but a shattered past. Abandoned by both humans and elves, he’s forced to survive alone in a dangerous forest. With no one to trust and nothing to his name.He awakens a mysterious system that gives him the mission to create the greatest empire. Aric takes up this task in other to survive, trying to make the greatest empire from scratch in this new world. Will he make it to the end other will this world swallow him.

An ordinary young man reincarnates as Adrian, the eldest son of a once-prominent noble family now living out in boonies of the kingdom. Watch as Adrian embarks on a tantalizing journey, to support his graceful and caring mother and feisty older sister, as a man should, with his seduction system.

I finally managed to kill the demon lord.