It is Reply 1988 (the childhood friends, the close community) meets Our Beloved Summer (Reunited exes, hard breakup story, finding each other again, healing vibes) meets Hometown Cha Cha Cha (seaside village, the fun community vibes, the ML is loved by the community and loves his hometown).

- FL's family treats her badly
- The whole evil mom and sister plot
- ML is from a prestigious family and respected by FL's family
- ML saves and supports FL
- FL's sister tries to take ML
I am not sure, but watching Perfect Marriage Revenge reminded me a lot of As Long as We Both Shall Live, even certain scenes felt so similar. However, in Perfect Marriage Revenge, the FL decided to get revenge on her family and make them pay which is different from As Long as We Both Shall Live