Missing something

I join watching this serial later but as far i saw i feels there is something missing ..and wanting rehaan character little darker more..and both rehaan piya looks good but spark is missing what i feels w

I remember Vivian too play vampire, maybe he was the first actor played vampire Indian television, he done very well,in that serial even that serial pkyek was ekta's serial.

I think kuch toh hai can do more better.