The Secret of Picking Up the Light (2020)

It's quite similar to this...................................... you should watch the drama while you were sleeping. Lee jong suk was so good

if I’m not wrong, both male leads travel into the past to change past events and to make sure they don’t have any regrets anymore.

The main lead gets a second chance to do things he regreted doing in the past.But this one he actually time travels back in time.

Naho Takamiya (Tao Tsuchiya) is a 2nd year high school student. During the spring, Naho Takamiya receives a letter sent by herself from 10 years in the future. In the letter, she liked transfer student Kakeru Naruse (Kento Yamazaki). Kakeru Naruse carried emotional scars from his mother's suicide and he died one year later. 26-years-old Naho Takamiya thinks about Kakeru Naruse often.

2nd year high school student Naho Takamiya, with the knowledge of what she feels 10 years in the future, takes action to change her future.

Satoru Fujinuma is an unpopular manga artist, who doesn't like having relationships with other people, although he also works part-time delivering pizzas. Satoru has the special ability of "revival", that allows him to go back in time before terrible incidents occurred and right whatever wrong occurred. He goes back continually until the incidents are prevented. 18 years ago, a serial murder case took place with the victims being children. Satoru, using the body of an elementary school student, travels to that time to catch the killer and to save his mother who faced the criminal

If you like Zhao Yi Qin should wacth this too. In this drama Zhao Yi Qin more handsome with mature story line. After My Youth and My Girl, then Consummation.