ch2 - hatch a CHROMADILE - in one day because the game autostarted. It's possible, but still a lot more difficult than in the previous storybook adventures.
ch4 - hatch an AQUATTER - its a RARE animal! Even if I was lucky and got a Chromadile on the first try, it is necessary to have extremely much luck to get a rare animal.
ch5 - feed RACMOON x30. What? 30 times??!! This adventure is the craziest I've seen in FF. I doubt anyone will finish it without investing gems. At least I do not like the animals of this storybook so much.