I feel some similarity between FROS and BIOG, because of their plot. Both dramas are about ghosts in comedy and mistery genre. BIOG is maybe a little bit lighter, considering the protagonists ages and FROS has some historical/past life thing too, which is nowhere seen is BIOG where the female lead is a ghost. In short, i can recommend both dramas if you like ghosts, romance and some mistery too.
