Here is the full list of all 12 HENTAI RESORT - there are Dream Paradise achievements.
Obtain 20 panties
Play 100 minigames
Meet the mysterious guest
Take part of 100 conversations
Get confidence with all the waifus
Play 25 minigames
Take part of 25 conversations
Play 10 minigames
Get confidence for first time with a waifu
Get confidence with 5 waifus
Play a minigame for first time
Start your first conversation