Rakuin no Monshou - Volume 5, Chapter 3: Helio

I do not own this imageHe was a swordsman beyond compare—cold, calculating, and relentless. A man who chased power not for glory, but to break the fate forced upon him. Betrayed in his final battle, he died with his blade in hand... only to awaken in a world not his own.Now reborn in the world of High School DxD, Nero carries with him a mysterious System that allows him to defy logic:— Steal and evolve Sacred Gears— Accept world-altering quests— Access a store that sells power itself— And shatter the limits of every universe he entersWith the power of his Void-Forged Blade and a will forged in war, Nero walks among Devils, Angels, and Fallen—but he kneels to none.As he joins Kuoh Academy, crosses paths with Rias Gremory and her peerage, and uncovers the secrets of the multiverse, one thing becomes clear:This world, and every world after it, will tremble beneath his blade.

Gabriel, a dominant omega, is caught up in a complex web of intrigue and danger at the royal court. After uncovering the truth about Olivier, a member of the royal family, and inciting a rebellion, he is marked by an unknown alpha. As the rebellion overthrows the old order, a new empire emerges, driven by a ruthless ruler whose rise Gabriel inadvertently enabled.Haunted by the weight of his actions, he flees from his family, his past, and the dangerous ties of the court. On the run, Gabriel must deal with shifting alliances, hidden enemies, and the growing power of the mysterious alpha whose mark he carries. As the empire's grip tightens and ghosts from his past resurface, he must decide whether to confront the forces threatening to engulf him—or risk losing himself completely in a world that regards him as either a pawn or a weapon.

(Genderbender + Yuri + Smut*ch43+)“…Adrei, this old man requests that you to feed me properly.”“Oh? Is it not a request from your daughter to ‘properly’ take care of your…unique needs?”“I get it, but my mouth is up here, you perverted dragon!”“Ah it seems the wind is blowing quite nicely today…”

You take up a student career.

Student career upgrade to lv.7

Acquired skills: primary school knowledge, junior high school knowledge, high school knowledge.

You take the college entrance examination,

You got a perfect score.

Your basic occupation has been upgraded to lv.9, and the job transfer system has been activated.

You change jobs to become a scientist, you gain R&D skills

You use research and development skills to get space fortress construction technology

You use R&D skills to gain starship technology.

You are invincible.

- Description from novelbuddy