anyone already finish the novel, please answer me ^^

I remember seeing a translated post on Twitter that contained a Q&A interview with the author. The author said that it’s a secret that only Hua Cheng and Xie Lian know. Even the author herself does not know what the password is ╮(￣▽￣)╭

Author hasn't revealed it
Probably something like 'I love you dianxia'

Oh i remember read transtaled interview on tumblr. But at that time i havent read HOB so dont have any idea who is Hua Cheng or Xie Lian .

I guess MXTX prefer to make the password a secret between the couple then

Maybe without dianxia
If im not wrong when they want to confirm each other identity hua cheng suggest that Xie Lian say the first verse and hua cheng will say the 2nd verse so maybe like "i love you" "i love you too"