I watched this after I have completed the series of One and Only. 'One and only' storyline was referring to the ancient times whereas 'Forever and ever' is their afterlife which is in the modern times : of Both main lead - Allen ren and Bailu as Zhoushengchen and Shiyi. Both of them are great in acting and able to translate the story so well through all little details:- the eye contact, tones and unspoken meaning. But one thing to be prepared is that, this romance story is not like any typical romance, there are not much of skinship or kissing scenes. And the stories and directing are definitely not those fast paced. Actions, scenes and storyline progress are in a mid to slow pace. So, if you are patience and able to feel the emotion throughout the episodes then you will definitely love both of the story. After watching 'One and only' it is sad, bitter yet it warms my heart. Which turn out to give hope to watch forever and ever. 'Forever and ever' is a more relaxing, fun and cute movie. Both of the movies give me warmth, touching, cute and fun! So, it is like a whole package of goodness! Both are my top pick drama of 2021.