In her fifth year of marriage, dutiful housewife Hana noticed her husband had become deeply engrossed in complex investment topics like "asset building" and "cryptocurrency." He always spoke with serious intensity, prompting Hana to gently warn him, "Don't get too carried away..." But one day, her husband brought his company supervisor home. This man was known as the most popular trader in the firm, rumored to be a billionaire investor. That's when Hana began noticing strange changes in her husband's behavior, uncovering the hidden truth behind his recent obsession.