This drama has sort of same characters. The only difference is that LIT has more romance and its more a high school drama and HNH has more office romance with more mature characters.
if you love the kiss dramas you might also like this one. i really liked L?DK. it's is kinda the same plot with them living in the same house. it really had cute moments. the only thing is that L?DK is a movie not a drama :(
but it also has a manga version.
but it also has a manga version.