Blue Birthday (2023)

Jung Yeol and Na Ra fell in love with each other and got married. During their marriage, they have grown to hate each other due to their personality differences. They decide to get a divorce. A month later, their divorce will be finalized. But, on the day that they applied for a divorce, they get into a car accident. When they wake up at the hospital, they have both lost their memories and do not remember each other.

I recommend this both drama because , Male lead and Female lead
try to solve problem
In one drama explosion and another student murder/suicide

Both FLs time travel into the past and their school days in order to save the ML who appears to have committed suicide.

Similar story 2 ML & 1 FL, friends from younger days until they getting older. A twist of youth love along the way. Ray Zhang too adorable as always! Both movies a must watch movies with different story line.

Inseparable childhood friends Shou Heng and Cheng Shing have their world thrown into chaos when a new girl comes to town and falls for Shou Heng.

In both FL travels back to save ML and change the future. ML was in love with the FL. Both have time travel and solid friend circle.

Mizushima Toru is a former literary youth who lives a dull office worker life. One day, he receives an invitation and visits Kaede Inno Flower Shop. The owner, Mochizuki Hayato, is curt and blunt, and suddenly offers three flowers, saying, "choose what you like". Toru chooses one, tears off the petals, and for some reason finds himself in a high school classroom! In a panic, he searched around to find out what was going on, and found a diploma with "March 1, 2013" written on it. "Congratulations on your graduation" is written on the blackboard. What a time leap 10 years ago. The woman who appeared there was Toru's first love, Shindo Kasumi. However, the bitter past cannot be changed, and only regret remains. Hayato said "There are 7 tickets left for fate". With 7 more time leaps, will he be able to redo past regrets and fulfill his first love?!

On her 17th birthday, Ozaki Karin suddenly lost her childhood friend and first love, Soma Jun. Ten years later, on her 27th birthday, Karin happens to find a film camera left behind by Jun and the photos he took of her. This causes her to remember all the feelings she had for Jun. Unable to control her emotions, Karin burns all the photos and is transported back in time to the day the photo was taken 10 years ago. As Karin travels back and forth between the past and present to stop Jun's suicide, she slowly discovers the shocking truth behind her childhood friend's death.