Running in both directions to save each other,
"I hope you can live well"
I hope you are well, but this is an uneasy story
"The thing I least regret in this life... Meeting you... The thing I hope most in the next life... Not to meet you again... It's too painful..."
Avoid lightning: be has a big age difference (the male protagonist is 13 years older than the female protagonist) and memories are the main thing
Intention: The most loving thing in the world