IsaChiu
He knew that they would end up entering a cave and there is no lack of the story of a supposed treasure and still waiting for the "pov" to know his thoughts (I accept that he realizes his love, he will deny it or what, suspense), instead it seems that the Fate wants the two to be trapped and run towards the treasure, while they undertake a journey where they strengthen their love, if I'm not mistaken if there were tests to get out of the cave (it would be a final test where they have to be sincere with what they feel, or with a kiss from both (of course they have to have a bit of mutual affection for it to work), it would be a great development and a small advance in the relationship), although with how absent-minded she is "protagonist" after all what happens (if it is as I say) everything will continue relaxed without worrying about anything xD. - It's time for the "big sister" to mark territory with a good kiss.