This story precedes and exists in the same canon-compliant universe as Buried Giants < https://www.asianfanfics.com/story/view/1389756/buried-giants > therefore this story will also follow real-life events (as accurately as possible). Here is my disclaimer:

1. I wrote this story because people were talking (and being bumped) about Dispatch's 2021 dating rumors, which was said to be involving Rosé/Lisa. That's why the purpose of this story is to entertain. Even if the rumor were to be true, it won't make Chaelisa any less real. And—this is important—if you happen to believe it to be a media play or anything, it's okay. Just don't rub it on other people's face. Let's be respectful of other people and their opinions.
2. This story was written as others were: I researched then wrote my interpretation of it. I watched some videos from several YT channels (e.g. "Rosielis shi", "Pransé ParkManoban", etc.) and read the comment sections. The comments I did take into consideration were mostly written by: (1) people following BP since their debut days; (2) Koreans with knowledge of the (general and/or dating) cultures and rumors; (3) mature people (some of them are even married adults). I disregard comments from people who like to bash other people/ships without any provocation/reason because this just shows that they are (sorry not sorry) childish—hence unreliable.
3. The moments (of Chaelisa) I noted were mostly pretty obvious; I didn't analyze anything. Interpreting and analyzing are two different things; the former doesn't start with a hypothesis; the latter starts with one and often seeks to prove one. Let's be honest we have experienced writing a mid-term paper in which we tried so hard to explain (or babble) that our hypothesis was true ;)
4. This might cause abjection: I don't think Jensoo is real (as in real real), hence the ending of Buried Giants, but Chaelisa I'm inclined to believe. The only ship I think as real is Moonsun. And I've come to notice that Chaelisa has so many things in common with Moonsun: (1) both hated each other at first; (2) constantly bicker and fight often; (3) text/call each other often; (4) one teases the other a lot; (5) a shift—Moonsun's happened after their big and long fight in Jeju (2017) and Chaelisa's happened after Coachella (2019); (6) one is completely fine when the other is being super clingy; (7) giving expensive gifts; (8) spending time together a lot; (9) talking about each other a lot; (10) close to each other's pets and family. I mean, Moonbyul practically lives in Solar's house; Rosé probably does too in Lisa's (jk lol). But who knows, right?
5. This story can be read as a standalone but I do recommend you read Buried Giants to gain more contexts.
6. On top of things, I love words and writing so your critic and opinion are always welcome.
7. Enjoy!