Take you to the Settings menu, this menu includes:
Changing your Nickname
Changing sound and animation settings
SNS / Account Link
8) Stamina Bar
This displays how much stamina you have. You need stamina to participate in events. Your stamina will sometimes increase when you level up.
9) Stamina Overflow
When you get a stamina refill either from using orbs, from using a stamina bottle or from a level up, if the amount of stamina you are refilling by is greater than the size of your stamina bar, the excess stamina will go into Stamina Overflow.
When your Stamina Overflow reach 100, you will receive a +100 Stamina Bottle, which you can use to refill 100 stamina whenever you need it.
Event, Summon, Sale or Legend Arena banners can appear here. Click them to go to the thing they are advertising.
11) Follow List
This takes you to the list of people you follow. The people you follow will appear frequently on your guest list when starting a battle. The only way to follow someone is by adding them after using them as a guest.
This will take you to the news page. This is where the developers tell us what is going on in the game and what is coming soon.
13) Training Campaign Missions
This menu option will only show up during special events. Here you will be able to claim special event rewards.
If you are new to the game there will also be an option above this for Beginner Quests
14) Gift Box
This is where certain rewards will be sent, some items will expire after a while so if you see anything in here that you want/need then make sure to collect it as soon as you can.
This is where Event, Lifetime and Daily missions will show up. Some rewards will be sent to the Gift Box when claimed.
16) Main Menu
This button will let you navigate back to this main screen when you are in other menus.
17) Scene Shop and Collections
This button will take you to the Scene Gacha screen. From there you will be able to summon on scene gacha, examine scene collections and browse your character and scene log.
18) Battle Menu
This will take you to the battle screen, from here you can choose from Events, Story Mode, Battle Tower and daily dungeons.
19) Legend Arena
Legend arena is this games version of PVP.
20) Gacha Menu
This menu contains all the currently available gacha banners, including:
Guaranteed 5* Summons
Power Up Banner
21) Team Menu
This is the menu that contains all the actions relating to your characters;