Within a Hollow Heart - Chapter 2: Volume 1, : "Whispers in the Dark, and Shadows We Seek"

He died on the wedding of the girl he had a crush on, after a long and successful career. After convincing Yama to send him back to the world, he decides to fix the areas in which his life went wrong. Realizing the lack of love and romance in his past life, he sets out to conquer the hearts of various women.

[ You have Acquired Undead Queen Calypso ][ You have Acquired Dragon Monarch Centour ][You have Acquired Chaos Dragon Bloodline ][ You have Acquired Ant Queen Mephisto ][ You have Acquired 3,000,000 Elite Ants as your Subjects ]___Earth was devoured by Orca, a mysterious realm where World Dungeons became the path to unstoppable power.Igaris, heir of a fallen house, finally awakens the God Particle.With the awakening, he dives into countless supernatural worlds, gaining an endless number of subordinates through his God-tier ability: Infinite Acquisition.As his army grows, he sets out on a path of ultimate revenge for the extermination of his family.Will he succeed?----Infinite Acquisition - An Overlord's ability that allows Igaris to acquire almost anything into existence with just a touch.And that too without any limit.He can order his acquired object or subject to do anything he wants.Slaves or Subordinates....?How will Igaris curve his path to become the Overlord again?Or was there someone else who lurks in the shadows?

Crossing to One Piece world, he became Roger’s younger brother.

Unexpectedly, Gol-D-Roger who was in his fifties had a teenage brother. But he was so weak.

Fortunately, at the age of sixteen, he actually found himself with a possession soul system.

He had attached to the master IP man, also to the White Phoenix and to Ge Nie with his strong ability of the Hundred Step Flying Sword.

If you think that he can only Purchase these? Then you’re wrong!

Pain, Itachi, Ichigo Kurosaki, as long as there is money, any soul can be Purchased.

- Description from Novelupdates

What was originally an ordinary day, suddenly became a historical turning point. Enormous, mysterious Cubes appeared all over the world without warning and as if Judgement Day’s spears, inserted themselves into the blue planet.

From inside the enormous Cubes, endless streams of monsters gushed out alike raging tides, utterly defeating the unguarded armies of each state in the blink of an eye.

In order for humanity to preserve its final embers, the heads of states issued orders of retreat, to no longer attack the Cubes but rather to cling to remote cities, which they turned into self-sufficient survivor bases and around which they built 100-meter-tall Walls of Life!

Many years later, while bearing the heavy weight of history, the first expeditionary force brought back a world changing piece of information. The Cubes possessed exceedingly high intelligence and they regularly transmitted mission instructions to humans nearby. The mission rewards were incredible.

Since then, humans rushed out of the confines of the walls and once more set foot on the wasteland!

- Description from Novelupdates