Twenty-Five Twenty-One: 6 Signs Yi-Jin Is Min-Chae's Father
Is Baek Yi-Jin Adopted on "Twenty-Five Twenty-One"? The Signs Are There
Watch out! This post contains spoilers.
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Watch out! This post contains spoilers.
A theory that could give insight into present-day Hee-Do's distressed expression when her mother says she saw Yi-Jin a month ago in episode four is taking hold on Twitter. When mentioning that she saw Yi-Jin, Hee-Do's mother states his full name, which could suggest she is not familiar with him. Twitter user @taeri_yeosin theorized that Hee-do's mother may have dementia, so she does not remember that Yi-Jin is now her son-in-law. Rather than being about any dark memories about parting on bad terms, Hee-Do's negative reaction could be because she is upset her mother does not remember seeing him more recently, or that she thinks she saw him last month (Min-Chae's father travels for work and hasn't been back in quite some time because of COVID, so perhaps there was no way Jae-Kyung saw him a month ago).
This theory also goes well with the theory that Yi-Jin changed his name and would explain why she uses an old name rather than his new one. This would also explain why the women avoid talking about Yi-Jin, as it would confuse Jae-Kyung.