![](https://i.mydramalist.com/xnNnq_4t.jpg)
![](https://i.mydramalist.com/EV3jm_4t.jpg)
The main leads in 55:15 Never Too Late revert back to their younger self just like 18 Again. They all have regrets that they want to try and fix.
![](https://i.mydramalist.com/jYl8b_4t.jpg)
![](https://i.mydramalist.com/BwpVRt.jpg)
It has a similar premise, though it is a romance between a man and a woman.
-heart transplant
-change in personality bc of their new heart
-gaining feelings for another person bc of their new heart
-rich/poor dichotomy
-rocky start, etc.
-heart transplant
-change in personality bc of their new heart
-gaining feelings for another person bc of their new heart
-rich/poor dichotomy
-rocky start, etc.
![](https://i.mydramalist.com/evKbnt.jpg)
![](https://i.mydramalist.com/anzWat.jpg)
Amnesia, undercover work, and drug wars are some of the major similarities. The two shows are both action romance, although, I would say "Age of Legends" is more light-hearted.