Games Like Fantasy Waifu Collector

The world is decaying into ruin, as it has been overrun with monsters.

Newly awakened into this world, you must recruit "Waifu" in order to restore the world!

Upon waking into a strange world, you are greeted by the Goddess of Dragons. She is irritated at having to deal with people suddenly appearing in this world, yet offers some helpful advice in order to survive here. With a not-so-subtle threat of being eaten by "things", she guides you to a pile of trash to see if one of them will help you survive, or eat you!

A strange grey-colored "doll" springs to life and due to a miscommunication, calls herself "Trash-chan". Despite losing her memory, she is friendly and more importantly, doesn't eat you!

The Goddess of Dragons, relieved to pass of the burden of helping you to someone else, teaches you about fighting and tests your ability. With one swing of Trash-chan's mighty scythe, the Goddess of Dragons is defeated! She runs away in embarrassment. However, a Waifu who was watching quickly runs over and offers to help you recruit more Waifu.

That's what this game is all about, right? With the help of the Squad Leader, you're able to amass a force of Waifu! As more Waifu are recruited, the Goddess of Dragons "helps" guide the player through tests with the intent of strengthening their army.

Apparently, the threat to this world is the Demon King! Of course, the Demon King must be defeated, then the world will be restored! That's how it's supposed to go, right? Or is it?