The supporting character's harem is very normal - Chapter 233 Claire, I wish you happiness

Alexander Sirius’ life has hit rock bottom, his parents hate him, he lives under the shadow of his genius sister, and even his own girlfriend cheats on him, all this changed when he gets another chance.

Transported to Another World? Cultivation World? A Modern World? How about all of them? From countless planets in the Universe, Each planet has its own technology, culture, and civilization.

In another world, carrying all the traumas with him, would he manage to reform himself and become the sovereign of his life?

[Host has Gacha System]
"Okay, what can you do?"
[I am a Gacha System, so I only have Gacha]
"Only Gacha? How about godly pills or overpower techniques?"
[Everything can be acquired with Gacha because Gacha is all you need]
"Gacha usually is only a complement for the Main System such as RPG System. You are not useless, right?"
[THERE IS NO USELESS SYSTEM, ONLY USELESS HOST]

Join this 'Loser" with his 'Useless System' As they start their journey.

Another Work: The Magician of Sound

(I'm not a native English speaker. I have done some editing to fix my Early Chapters' Mistakes, but it is still not all of them)

******EXTREME CAUTION******

If you are searching for MC with a strong mentality and high intelligence or Independent and Strong Heroines from the start, this is not your thing. This is going to be a 'very slow' pace development in MC Character, the same applies to the Heroines. So rather than Giving bad reviews, I advise you to 'Not' read it rather than complaining about it later Discord: https://discord.gg/HYvMbb4

Lu Yanzhou’s best friend Xie Chengze’s soul was broken into fragments and fell into those small worlds. In order to save Xie Chengze, Lan Yanzhou embarked on the journey to collect Xie Chengze’s soul fragments.

However, he made a mistake in the process of collecting his soul fragments. He fell in love with Xie Chengze’s soul fragments.

Xie Chengze said he cultivated the ruthless dao. He was cold hearted and emotionless but he has always regarded him as a brother. He took advantage of when the other party lost his memories to fall in love with him…

The end of the first world, Lu Yanzhou, who was in love with Xie Chengze, was struggling: “When Xie Chengze recovers his memories, will he beat me up?”

After the end of the second world, Lu Yanzhou, who had another romantic relationship with Xie Chengze, made up his mind: “There’s absolutely no next time! Xie Chengze probably won’t break off all relationships with me?”

The end of the third world, Lu Yanzhou was apprehensive: “I’m here to save him..”

The Nth world ended, Lu Yanzhou broke the jar and threw it: “Wait until Xie Chengze recovers, I’ll go after him. There might be a 1% success rate, right?

Xie Chengze: “…” I took the initiative so much, are you blind?

- Description from Novelupdates

The world is changing, natural disasters are coming, and the whole people will travel through the doomsday game!

Scary beasts, wild swamps, weird ruins, dangers are everywhere!

Human beings can only rely on shelters to survive and accept rounds of natural disasters!

- Description from novelbuddy

What happens when a scientist from a futuristic world reincarnates in a World of Magic and Knights? An awesome MC is what happens! A scientist’s goal is to explore the secrets of the universe, and this is exactly what Leylin sets out to do when he is reincarnated. Dark, cold and calculating, he makes use of all his resources as he sets off on his adventures to meet his goal. Face? Who needs that… Hmmm… that guy seems too powerful for me to take on now… I better keep a low profile for now. You want me to help you? Sure… but what benefit can I get out of it? Nothing? Bye. Hmmm… that guy looks like he might cause me problems in the future. Should I let him off for now and let him grow into someone that can threaten me….. Nahhh. *kill*-

Alternative: Leylin is transported from an advanced technological era into a medieval world— except there’s magic. Equipped with “only” his quick wits and an A.I. chip fused to his soul, he sets out to become the most powerful magus the world has ever known. In a land divided into the Light and Dark Magi, the weak can either be cattle or disposable slaves. Only the strong can determine their lives, and only they have the luxury for virtue. Yet strength is only a tool for Leylin, like any other. His goal, in the end, is his own.