Episode 21 recap: Xiao Chang Qing reunited with his childhood sweetheart.

Xiao Chang Qing told Chen Xin Cheng that Sun Qian Cheng suspected his relationship with Xia Ming Zhou, and that it takes two to tango. Sun Qian Cheng was outraged and yelled that he and Chen Xin Cheng were sworn enemies.Xiao Chang Qing felt that Sun Xiao Qing and Chen Da Zhi were well-suited, but Chen Xin Cheng looked down on Sun Xiao Qing, and later even got into an argument with Xia Ming Zhou over this.

Sun Qian Cheng showed up, bravely standing in front of his wife, thinking Chen Xin Cheng was about to attack. Sun Qian Cheng suspected Chen Xin Cheng and Xia Ming Zhou's relationship, after all, it takes two to tango. Xiao Chang Qing hoped Chen Xin Cheng could consciously keep his distance from Xia Ming Zhou.

Sun Qian Cheng went to talk to Xia Ming Zhou, hoping the three of them could live together again, but Xia Ming Zhou didn't respond and just let him finish speaking before leaving. The next day, Xia Ming Zhou was wearing a very nice outfit, and when Chen Xin Cheng complimented her, she smiled gratefully, but when Sun Qian Cheng complimented her, she retorted that it had nothing to do with him.

Sun Qian Cheng was annoyed, and when he saw Xia Ming Zhou and Chen Xin Cheng discussing work together, he barged in, but Xia Ming Zhou didn't give him a warm reception, which only made him angrier. Xiao Chang Qing inadvertently saw Xiao Qing and Da Zhi chatting with Manager Xu, and couldn't help but suspect they were dating.

He informed Chen Xin Cheng about this, but unexpectedly, Chen Xin Cheng thought his son was going to do great things and there was no way he would fancy Sun Xiao Qing. Later, he got into an argument with Xia Ming Zhou over this matter. Sun Qian Cheng jumped out to help Xia Ming Zhou, while Chen Xin Cheng staunchly defended his son, and Sun Qian Cheng and his wife felt their daughter was more precious than gold.

Xiao Chang Qing came to mediate, but was innocently implicated, and both sides turned their spears towards him. Xiao Chang Qing felt like a mute eating bitter herbs, unable to express his pain.

Chen Xin Cheng and Xia Ming Zhou each called their children over and prohibited them from dating. However, the two young people have their own ideas. Even if they were to start dating and get married, that would be their own business and they don't want their parents interfering.

Because of this issue with their children, Chen Xin Cheng and Xia Ming Zhou have once again lost respect for each other and continue to bicker. Xia Ming Zhou finds it irritating to see Chen Xin Cheng, so he decides to move his office to Sun Qian Cheng and Xiao Chang Qing's side. Xiao Chang Qing proactively offers to move in with Chen Xin Cheng, but Xia Ming Zhou says that's not appropriate, so in the end all four of them end up cramped in the same office.

Chen Da Zhi and Sun Xiao Qing have feelings for each other and are distracted at work, thinking about one another. Their colleagues tease them about it, and an elderly woman even asks Xiao Qing if she's daydreaming about Chen Da Zhi, embarrassing her. Regarding Xia Ming Zhou's proposal, the three of them initially all raise their hands in agreement, but then Xia Ming Zhou ends up being the first to disagree.

At this time, Xiao Yue also moves into the office. At first, everyone is unhappy about him squeezing into the small space, but then they hear he will be the critical swing vote when they vote 2-2. So one by one, they all enthusiastically go to help him move in. Yuan Ying Shi tells everyone that the group has decided to make the elderly care business an important part of the group, and will be investing more in retirement communities. The new Xin Yi retirement community will take on the important task of exploring and accumulating experience in retirement community development, and in the future can accept residents from outside the group.

Xiao Chang Qing's former high school classmate and first love, Lin Jie, has moved into the retirement community. Xiao Chang Qing follows behind and confirms multiple times that it is indeed Lin Jie. The other two old guys question Xiao Chang Qing about it at night, and he recalls and honestly tells them that at the time, due to his father passing away, he ultimately chose to break up with Lin Jie, and he feels bad about it. Now he just wants to live peacefully in the retirement community.  

Sun Qian Cheng prompts Xiao Chang Qing to talk to Lin Jie under the pretext of routine business understanding. Xiao Chang Qing unexpectedly finds out that she is now single. At the same time, Chen Xin Cheng and Sun Qian Cheng also see on Lin Jie's personal information that she is widowed.