Mu Ai Guo Hou (2024)

Both are about the ML in the future trying to prevent the FL's death in the past by connecting with her through her cellphone.

?Both are feel good dramas
?Both dramas have "eyecandy" heroes ?
?In lovely runner FL time travels to save ML life while in Present is Present ML time travels to save FL life

Both have an unusual form of time travel, prompted by one of the leads trying to save someone who was murdered, that causes butterfly effects.