The Light in Your Eyes (2019)

Both dramas are romance, fantasy, supernatural genre about characters who have ability to manipulate with time.

Both shows have a really gritty, unfiltered depiction of people in poverty, downtrodden by their circumstances and random events that happen in the course of their lives. They also both show the reality of people trying to handle trauma and difficult things that happen in their lives. But both also have genuine moments of connection and commonality with others.

The movie "Love You Forever" is similar to the drama "The Light in Your Eyes (2019) " in the movie the male main leads travels back in time to save his first love from accident at the price of his fast aging and being erased from memories of people around him even his father .Where as in drama female main lead turns back time multiple times to save her father at the cost of her fast aging into a grandmother

I don't know how to write anything without spoiling the stories, but they both have a very similar plot twist. And they are both absolutely beautiful.

Story lines are completely different, but these two dramas just give you the warmest feeling upon finishing them. They both take you on an emotional journey and you can really get to know the characters.

Maaaybe not at first glance, but by episode 12 of The Light In Your Eyes, you’ll see the similarities. If I explain further, I’ll be at the risk of spoiling both.

-Both dramas tell heartwarming stories about the elderly.
-Both are relatively easy, lighthearted watches with substance that will make you think about the important things in life.
-Also Kim Hye Ja is wonderful in both of them.

Dai renai touches on the Alzheimer's Disease topic as well though it explores more on the young onset reality

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.

Both JTBC dramas are directed by Kim Seok Yoon. Both dramas involve sibling and parent relationships, romance, the struggles of daily life, and finding happiness and meaning.

The phycological side & plot twist in the end
Sweet in the beginning, But dark in the end
In these aspects they are similer in my opinion

(spoiler)
- both have the similar topic of Alzheimer’s disease and how it affects relationships both are very eye opening and have a warm but sad message

Both have a main character who is hallucinating/not really living the main story line throughout the drama. Both end in a way that is uncertain or not really clear cut endings. Both are almost sad in a way.

Just like Lost, TLIYE represents the elements of regret, hope and failure as well. Though both series are different in terms of subject, but they both deals with failures, disappointments, unrequited pursuits, and lost happiness, they were able to find at the end.

Lost and Nooni Bushige is also similar, because characters of both show deals with the pain, hardships and struggle of life.

In order to save her father from an accident, 25-year-old Kim Hye Ja uses a mysterious watch to rewind time in an attempt to prevent the accident, but fails. Desperate, she ends up rewinding the watch too many times and accidentally ages herself, becoming a 70 year old.

Confused and oblivious as to how she ended up like this, she sets out on a journey to put everything back on track. Along the way, she encounters her family and friends who no longer recognize her, including Lee Joon Ha, a young man she loved, who yearns for her while struggling with his life.

When 70 year old Kim Hye Ja and the young Lee Joon Ha come together to form an unlikely bond, a devastating and life-turning truth is revealed, the crux of all the time she lost.