you can find eden’s countdown messages for their first album here!! hiyori’s where she talks about fantastic days is a little towards the end: https://ensemble-stars.fandom.com/wiki/Eden_Album/Countdown_Messages

reading it again i think it’s kinda similar to how she talks about accept my love in the recent mc talks in-game, which is interesting in and of itself, but doubly so when you compare that to how different the messages of the other members are (esp adam) between the first album and the trip mc talks