Ten Thousand Pear Blossoms, Pity the Old, A Half-Life's Connection

The first book I read in 2020 was poignant? Sad? Moving? Or enlightening? Yes, we can't go back!
I love the simple and pure love between Sehyun and Manrim, although their love was thwarted by fate and they couldn't be together, their mutual affection and that memory will forever belong to them.
'Manrim had a habit: once she possessed something, she would cherish it more and more.'
When they reunited, Manrim asked Sehyun, 'Are you happy?' Sehyun remained silent and replied, 'I'm happy as long as you are.'
Manrim said, 'Sehyun.' Her voice was trembling. Sehyun didn't speak, waiting for her to continue, but he was completely choked and unable to speak. After a long pause, Manrim said, 'Sehyun, we can't go back.'
What might touch our souls the most could be Manrim's words, 'We can't go back.' Not only could they not go back, but we all can't go back. Life has no rehearsal and cannot be restarted. Therefore, we should cherish the present moment and cherish the people around us, and try to avoid regrets.