My Tomorrow, Your Yesterday (2016)

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

SPOILER ALERT! well not really but I had to type atleast 100 letters ;p

Anyway those two dramas are quite simmillar Fantasy/romance drama with a weird twist.

I believe both has the same vibe. The plot is different but the feeling is pretty much the same.