Lexin, a 28-year-old original home designer, was on the verge of bankruptcy in the fifth year of her business when she unexpectedly reunited with her senior whom she had a crush on in college - Lu Chenzhou, who is now a partner in a well-known architectural firm. A tit-for-tat confrontation at a bidding meeting revealed a story about ideals and reality, misses and reunions.
Eight years ago, he was a myth in the architecture department and she was a genius in the crafts department. She secretly likes him, and he protects her silently, but because her family is poor and her father is seriously ill, she doesn't even dare to say "I like" and disappears into the sea of people. Eight years later, he is the proud son of heaven, and she is the founder of a small brand heavily in debt. During an old factory renovation project, the two met on a narrow road. She thought he had forgotten her long ago, but found that he still had the chair she made in college in his home; he thought she hated him for leaving without saying goodbye, but he didn't know that every piece of her work over the years had traces of his comments.
The connection between mortise and tenon is the strongest joint and the most difficult to dismantle the entanglement. When business conspiracies, old rivals, and entrepreneurial crises hit one after another, two proud people had to make a choice between love and ideals. This is a story about waiting, growth and healing - some feelings are like mortise and tenon, they seem to be separated, but in fact they are never really separated.