Stepmother (2023)

One is GL, the other M/F, but both are historical mini dramas about the relationship between a stepmother and the child of the man she marries but doesn't love.

Both are Republican Era mini dramas in which the FL marries into the powerful household of a man with other wives to get revenge for her murdered family and then becomes involved with the man's son.

Both are Republican Era dramas in which the FL enters the household of a powerful and dangerous man to get revenge for her family. Along the way, she becomes involved with the man's son.

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

Both are Republican Era mini dramas in which the FL marries the ML's father to take revenge for her family.