14 February follows the emotional journey of an 18-year-old man in search of true love with the belief that "I love you with all my heart." His quest for the perfect partner to marry is filled with ups and downs. Each year, he encounters a woman he believes could be his soulmate, but every relationship ends in heartache due to the overwhelming conflicts, emotional struggles, and adventures that bring nothing but pain and stress. As time goes by, he faces numerous challenges and heartbreaks, from the struggles of his 19th year to the sadness of his 20th, followed by attempts at healing in his 21st year. By 22, he decides to let go and try new things, only to face more sorrow and difficulties. But at 23, he unexpectedly meets someone who truly reciprocates his love, and together they build a relationship that leads to marriage, ultimately transforming his life for the better. This heartfelt story explores the trials of love, the importance of personal growth, and the belief that true happiness and love come when least expected.