Strongest Counterattack - Chapter 436 - Go and Get Him!

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.

- Description from Novelupdates

“I don't share my possessions, Mr. Campbell. Your wife stole from me and now I want something back. You should know I always collect what I'm owed,”When Liam Campbell's wife steals from his wealthy female boss and disappears, he's left to face the music. But his boss, Lady Isabella Ashworth, has other plans for repayment—plans that involve keeping the handsome man for herself.Everyone thinks they know the score: young guy becomes a rich woman's plaything. What they don't know is that Liam's got more weapons than just his looks. Behind his perfect face lies a ruthless mind that turned him from a nobody into a rising star.Now, trapped in Isabella's world of luxury and power, he'll play her game—but by his rules. His main goal is to dominate her as much as she wants to dominate him.But who's really taming who?

Died a Hero, Reborn as a Demon...

The strongest Hero in the world killed the Demon King, the most powerful demon ever to appear on Earth. He achieved something which no other hero could ever do.

But alas, the Hero never expected his own girlfriend, his own friends, and the organization he trusted to suddenly turn against him and try to kill him.

It was the cruelest blow he was ever dealt in his life.

He still didn’t give up and tried to stand his ground, but they had come prepared, and he was caught unawares in their trap. He fought to his death only to find himself transmigrated into a demon’s body!

But who would have thought that he would be the husband of the Demon Queen!

However, life as the royal consort was not easy at all. So read to find out how he is going to overcome those trying to step on him and finally get his revenge.

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Amamiya Hiroto is unlucky. His life consisted of misfortune after misfortune, culminating in an unlucky death during an incident on a school boat trip, trying to save a girl he barely knew. After death, he met a god of reincarnation who requested that the hundred or so dead passengers—one of them being the girl he tried in vain to save—be reincarnated into another world.