- both FL go back to when they were 17 and meet their crush again.
- both dramas were lighthearted and fun.
- though main leads had no common personality, i found the vibe of both dramas similar and the ending too.

- Forbidden romance between Female Teacher and Minor Male Student
- FLs have cheating husbands
- MLs with family problems
- Lead actors find comfort and emotional connection in each other

They both starts off happy and romantic but tearjerker at the end. Both have the concept of what if we are given the chance to reset the time and make things right. Most importantly, both are focused on the importance of family and life. I may be giving spoilers: I found their plot twist similar.