My disappointing youth suddenly turned rosy the moment I became the world's richest billionaire, and when I rescued the most beautiful girl in the academy who was about to be sold off due to debt, she became desperately devoted to me, making me realize once again that money really is everything in this world—a harem romantic comedy.

As the title suggests. A story where the protagonist, who has become the world's richest person, saves the academy's most beautiful girl who was about to be sold to the night district due to debt, and is doted on by her. It takes about 15 minutes to read. Also serialized on Kakuyomi.