The Male Lead is Mine Vol. 4 (novel) - The Male Lead Is Mine, #4

More love. More letters. Peaceful days ahead. Reunited at long last, Aris and Roy became inseparable, refusing to be apart for even a second. Having finally gained her father's approval, they set everything in motion for their future together. What's more, now that Aris had come of age, Roy felt the line that had previously separated them vanish. Despite their keen desire to spend some quality time together just the two of them, life refuses to accommodate them and provides many interruptions.
After all, their wedding is imminent, and preparations of all kinds require their attention. But now that they're finally in each other's arms and free of constraints, how can the lovers bear to wait even one more day to share their first night and consummate their love?  Having reached his limit, Roy whisks his lady away to a secluded love nest in the woods where they can finally be alone. Now, if only they could get out of bed long enough to make it on time for their wedding. No hurdle is too hard to overcome with a lady's determination-and a few letters.