Mr. Kurosaki's single-minded love just won't stop.

The third volume of the "Billion Yen Proposal" is a love story of divine love! I want to lock you up..." Koharu meets Mr. Kurosaki, a successful writer, after he makes an overzealous proposal to her. As Koharu is gradually attracted to Mr. Kurosaki, his black-hearted younger brother Yui is suddenly approaching her. ......? Jealousy and possessiveness can no longer be stopped--!

The third volume of the "Billion Yen Proposal" is a love story of divine love! I want to lock you up..." Koharu meets Mr. Kurosaki, a successful writer, after he makes an overzealous proposal to her. As Koharu is gradually attracted to Mr. Kurosaki, his black-hearted younger brother Yui is suddenly approaching her. ......? Jealousy and possessiveness can no longer be stopped--!