Chocolate (2019)

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

I haven't watched Chocolate yet so I might have to return to revise this recommendation eventually, but from the preview and reviews it reminds me a lot of Dazzling. Of what it kept its characters afloat (for instance, eating was always emotional) and also of its flaws (development much too slow, tropes all about—the plot was weak compared to the characters—and a focus on older people or death).