As a Supporting Character, Why Do I Have So Many Heroines Around Me?

Xie Wei, by chance, learned from a system that his world had a 'Child of Destiny', and that he, Xie Wei, was like a minor supporting character with little screen time in a novel within this world.

As someone content with a simple life, he initially didn't care about such matters, believing he could just live his own life well. However, the system informed him that in a few years, this so-called Child of Destiny would destroy the world. Xie Wei needed to alter the fates of people connected to the Child of Destiny through the butterfly effect to prevent this catastrophe.

To protect the people around him, Xie Wei embarked on a path of changing others' destinies.

But as he progressed, he began to notice things were amiss. The computer genius whose fate he altered now calls him 'Brother' every day and insists on staying at his house; the saintess of an assassin organization wants to move into his home; a stunningly beautiful celebrity wants to date him;

Even more strangely, the female lead from his school, whose fate he didn't even need to change, agrees to marry him; and the shining girl-next-door singer from under the stage wants to give herself to him for free...

Xie Wei then realized, how could he, as a mere supporting character, have so many heroines surrounding him? At the same time, he also uncovered the truth of the world.

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This is not a typical 'cool' story. The system is merely a tool to advance the plot in the early stages.

The male lead is very insightful, and there are no disgusting plot elements in the romantic aspects.