Both are two of the cutest romantic comedies out there. Both have swoony male leads who start out as cold but warm up to be the most adorable BFs ever. Both have hilarious female leads who do physical comedy really well. Both will make you LOL and both couples have amazing chemistry though 30b17 couple is much more innocent due to their emotional ages. Funny coincidence, both female leads also acted together in Legend of the Blue Sea when Shin Hye Sun was still a second lead actress.
