Dark Lord: Rise to Power - Chapter 23: Cave of Echo- ’New Night, New Adventure’

Aomori, who has a monster-fighting system, came to the world of One-Punch Man and gained the ability to enter various instances.

Therefore, “Founder of the Hero Association”, “NO. “And other titles fell on him one after another.

Comprehensive flow, the main world One Punch Man.

Completed dungeons so far: Pokémon – Demon Slayer – Sword – Pokémon – Digimon – Spell Return – Yokai Comprehensive World (Girls that Noragami Inuyasha can see, etc.) – Pokémon – One Piece-re0-Dragon Ball wait.

- Description from novelbuddy

Step into a world where science meets the unknown, where mechas clash in brutal duels, and where every Biocore holds a mystery waiting to be unraveled.Follow Nioh, a genius weapons designer, as he uncovers lost technology, battles biomechanical titans, and pushes the limits of power, in an intergalactic thrilling adventure

Rein Aster was just a herbalist farmer from a border village.A nobody. A background NPC in a story filled with prophecy and divine warfare.But by chance—or fate—he saves one of the 7 Demon Lords during a catastrophic war event. Instead of killing him, she falls for him.Obsessively. Violently. Eternally.And then… so do the others.Each Demon Lord tries to trap Rein as her personal lover/pet/priest/husband/god, building dungeons, illusion palaces, soul prisons—but Rein keeps escaping. Quietly. Cleverly. Never fully rejecting them—but never submitting, either.Why?Because Rein realizes something:The gods are worse than demons.The heroes are tyrants in shining armor.The world is collapsing—and he’s the only one they all listen to.So he hatches a plan:Use the Demon Lords’ love to take over the world.Pit them against the heroes. Unleash them on the gods. Make them fight for him. Make them kill for him. Then tame them all.Not as a king.Not as a savior.But as the lover they would burn the world for.__________The yanderes here are darker than what you might be used to.You have been warnedThe entire novel has a dark feel. Atleast read the first two minor arcs

Destiny splits before me into two unrelated, straight lines:one leading to a palace and city ablaze, the Kingdom overthrown, the Earth bearing suffering, and Life enduring torment in this Fire.And the other leading to the pinnacle of Ancient Kings, where deities in the clouds personally crown me. I don the laurel wreath, basking in the cheers of the mountain. My gaze pierces through the mists of history, my Knights conquer lands for me, my Sword cleaves through obstacles, leading my people to victory.I take up this Scepter, holding the Authority of the World in my hands. I overlook the multitude, altering the course of history.I am Brand, King of Vorn, and this is my Legendary tale..........................Plain version synopsis: This is a story about a Senior Warrior with memories of rebirth, crossing back into the World he once fought for to alter the strands of history and make a mark in the sands of time.