1. The Chest is where you receive rewards for free as time passes. You can come back from time to time to collect a guardian chest as well as other goodies:

        2. The Room is where you can visit the Goddesses. You can chat with them, gift them with items to increase their affection towards you, or go on dates to earn rewards. You can also change their clothes here and interact with the Memory Bonds:

        3. The Summon menu pretty much redirects you to the Shop, namely the step-up gacha pulls:

        4. The Team is where you can see all the combat prowess of your goddesses, their equipment, and their skills. You can also use various items to make them stronger here. You can also see what element they belong to and what class they are a part of.

        5. The Backpack essentially represents your inventory. Here you can find all the items that you currently own.

        6. The Light House is where you can offer Light Energy to the Light Goddess statue by clicking on it in exchange for sex toys and visions of other characters. Light energy can be obtained from completing Story stages.