In "Happy Birthday Papa Ji-Soon | Melason Family Vlog," the Melason family celebrates Papa Ji-Soon's special day with heartfelt surprises and joyful moments. The vlog captures the preparations, decorations, and fun activities as they honor him with a birthday party. Viewers enjoy the warmth of family gatherings, heartfelt messages, and the laughter shared, showcasing the love and appreciation the family has for Papa Ji-Soon on his birthday.