Flower Boy Next Door (2013)

Both FLs are withdrawn and agoraphobic, and they use binoculars to people-watch the outside world. Both MLs are their only friend, have kind personalities, and try to bring the FL out of her shell. There's also a SML who the FL has a crush on.

Both dramas have:
- FL struggling with past trauma
- Both stories take place at an apartment complex
- Healing through love
- Nice comedy
- Silly but cute and entertaining neighbours and side stories
Overall they have a pretty similar vibe.

Both features Social Anxiety in one of the main leads and how they try to open up to their love interests.

both dramas tell of a love story involving an introverted heroine who has hidden herself away after a scarring experience, and an extroverted fast speaking (and cute) hero, who helps her step out her doorstep and into the world waiting for her outside.

Both FLs are very shy, reclusive, and have past trauma. MLs are more outgoing and slowly coax the FL out of her home/shell.

Both series show the relationship between neighbors and female lead doesn't trust people easily. Let's eat has bonus food eating scenes.

Both the leads (Male lead in Introverted Boss and female lead in Flower Boy Next Door ) are introverts! But the cheerful partners of theirs help them in regaining their social positions.

Both main characters have been hurt in the past to the point they are focusing only on their work, till there is a situation where they are "forced" to meet new people.

Yoon Shi Yoon who plays Enrique is a wonderful actor. He is able to emit such a range and variety of emotions. Both dramas have fun parts, but deal with serious themes in life. One deals with a young lady who had emotionally and physically withdrawn after unfair hardships from others, while another deals with a young man who continues to persevere and fight on despite unfair treatment from others.

Once again Yoon Shi Yoon is in this playing a free-spirited flower boy whose path collides with women who have shut down emotionally. While in one drama, the main female lead becomes a hermit, in the other, the main female lead becomes an ultra-tough girl.