The story focuses on floral artist Xu Nuo (played by Sun Yi) and her boyfriend Peng Yu An. They have been in a relationship for ten years, but there has been no progress in their marriage. Faced with Peng Yu An's procrastination, their relationship gradually becomes distant. At this time, Xu Nuo meets Zhao Jin (played by Zhang Wan Yi), a veterinary doctor who is also under family pressure.

Unconsciously attracted to each other through their shared experiences, Xu Nuo and Zhao Jin embark on a forbidden and entangled love affair. The story revolves around the joys and sorrows of this couple and how they navigate moral dilemmas in the context of relationships and marriage. In the drama, Xu Nuo's relationship with her boyfriend Peng Yu An reaches a stalemate, and Zhao Jin's appearance brings her long-lost warmth.

This forbidden and entangled love storyline creates tension and excitement throughout the plot, leaving the audience exhilarated. Key point 2: Falling in love with a friend's girlfriend. "I Know I Love You" is a remake of the Korean drama "Spring Night" and retains the profound exploration of emotions, marriage, and morality from the original series. However, it makes some adjustments in pacing and dialogue to make it more direct and engaging for the audience.

This also gives the development of the drama a modern urban emotional atmosphere. Key point 4: Zhang Wan Yi's outstanding acting skills. Key point 5: Captivating atmospheric music.