Both start with a innocent and naive lead (FL in SF6 and ML in SF4), and they have some mysterious power, which resonates with the other lead. Both belong to the Sword and Fairy series but the stories are not connected, so feel free to watch them
If you like fantasy, romance and friendship. The leads couple were together from the moment they met just like Jin zhao and qi. The fl in snow eagle lord also uses magic just like qi. She also has a mysterious background and is also looking for her identity because she loss all her memories of her past.