Every difference between the manwha and novel thus far has been trash (for instance, in this chapter, they completely skipped the spell combo desir and romantica used to stabilize and land safely and instead decided on a cartoony plop into the sand. Fucking gross), so I am sure not looking forward to even more deliberate differences.
Edit: if the manwha author is really going to force more Romantica shipping I'm just gonna drop the manwha. I fucking hate non-canon shippers, and yes, the actual plot will suffer for it.