Round One

Both are gmmtv produced thai boys love shows. One character standing in the limelight, the other on the sides observing. Share the same director too.
Round One will probably get a banger soundtrack too, as Gawin has sung a lot of OSTs in the past and will probably record some songs for this too.

Both are gmmtv produced thai boys love dramas.
Both feature the same pairing - JossGawin.
Both seem to contain some more risky/nc scenes.