MTL - My Koi Sister is Three and a Half Years Old - Chapter 423 walking cash machine

The era of the decline and fall of the galaxy has arrived, and the power to destroy the world has gathered unprecedentedly.

The minions of the four evil gods are wreaking havoc in the real universe. The terrifying monsters and demon legions in the dark night of old have brought destruction and despair to countless human worlds.

In the darkness, a ray of light emerged.

Carrying countless human technologies, the soul from another world came back to life with the help of the body of the thirteenth parent and child of the imperial emperor.

The battle between humans and evil gods is rekindled.

In the name of the Emperor, countless human heroes gather again.

Blood and corpses will pave the way for the glory of mankind.

“As soon as I opened my eyes, you told me that human beings are about to die??”

- Description from novelbuddy

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.

Ein was a hitman on hire. A killer, a shadow, a death with insomnia, if you may.He had witnessed countless pairs of eyes dim as the light of life faded, leaving nothing but vile hollowness. Needless to say, the sight of a soul popping out of the dead body was a first.And it wasn't just any soul. It was the dead heir of Byers Holdings, the same guy he killed with his own hands. Turns out the rich boy Adriel had a horribly irritating and loud soul, but worst of it all - impossible to get rid of.Who would have thought that killing on a blue moon night could lead to being haunted?

In this period where countless supporting lead actors always attempt to counterattack, turn over a new leaf or simply refuse to take up the role, his purpose of existing is to fill the role of a good supporting male lead and uphold his duty to the best of his ability. To add the needed lustre to storylines and this world. Only, it’s a pity that someone who is not afraid of god-like enemies will be afraid of pig-like teammates.

Bitterly, he realises that for some unfathomable reason, he is being bothered time and again by a bastard who refuses to follow the script… In order to walk the path of a good supporting male lead, he engages in a battle of wits and courage with that person. Loving each other and killing each other, one ultimately cannot escape fate’s teasing– why is it so difficult wanting to be a responsible and diligent supporting male lead?! QAQ

- Description from novelupdates