MTL - Dawn of the Grey Tower - Chapter 59 Dragon and Bear Vs Pinwei (Part 2)

On the dawn of a fresh New Year, an ominous figure emerged, shrouded in a guise of an angel but harboring the malevolence of a devil. With a chilling voice, it proclaimed, [Every month, you humans will be thrust into a perilous quest. Your survival hinges on overcoming 20 grueling rounds.]Suddenly, I found myself ensnared in this dangerous survival game, a grotesque merry-go-round where every turn carried the stench of death. Yet, I was not without any defenses. I possessed an unusual power: the power to regress 100 times, a chance to rewrite my fate.I stand on the precipice of my final regression, and I swear, ‘This time, I will conquer it. I will emerge victorious.’I’m no longer the insignificant shuttle that I once was. Today, I shed my former self, the one who had reached the pinnacle of power. Today, I am reborn for the last time as Black Scythe, a rookie player, a novice that once again will be become the Grim Reaper!

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

The strongest Hero in history, Nakamoto Keisuke.

He was summoned to another world in the spring at the age of fifteen years old, and when he successfully defeated The Demon King, he was already thirty-two years old. He had finished his role in another world and returned to Japan, but the reality that had been waiting for him was, “Middle school graduate with seventeen years of blank period” label. He couldn’t find a decent job and had no choice but to spend his days working part-time.

Before such a Nakamoto, a beautiful girl who self-proclaimed had come to return the favor, appeared. “I’m the reward for Hero who had defeated Demon King”, said Angelica, a girl who came from another world that persistently tempted Nakamoto to make her his wife. Together with a high school girl who looks like Elsa, his beloved girl that he lost in another world, Nakamoto with his cheats skills got caught in a harem life.

Have you ever seen exposing holy vein?