They are similar in the fact that they are time travel dramas that utilize a watch as the trigger for time travel. Many more similarities but watching "The Light in Your Eyes" is the key to figuring that out.

Both: Movies / deal with characters in the afterlife / have stunning visual effects / strong characters / addressing the good & the bad a person has done while alive

Love >>>> Marriage >>>> Discontent >>>> Love rediscovered............................................................

"Mother knows best" - Both moms of the ML know who is good for their son / family........................

"Mother knows best" - Both moms of each ML know who is good for their son / family........................

"Mother knows best" - Both moms of each ML know who is good for their son / family........................

Hanaoni reminds me of Vampire Flower. Both have a setting involving a High School, emphasize a female lead being marked by a Vampire / Demon & focus on a struggle for power.

Young singing idols taking a stab at acting & doing a pretty good job at it..............................................

Young singing idols taking a stab at acting & doing a pretty good job at it..............................................

Drama Special Season 3: Return Home is set in the Qing Dynasty & is a story depicting the struggles of the people that were taken hostage by enemies & return. There is 1 image that I think about a lot. If you watch this I bet you will guess it.

Both are dramas the feature a ML that sees the FL for who she is and helps to facilitate her greatness. Both also have a fare amount of battle scenes.

Both are dramas that revolve around the power struggles of waring territories for ruling supremacy. Each drama incorporates a "hostage" that works/lives inside the "enemy's" borders & focuses on a love in a time of chaos/change.