Avatars

Rebirthing
This can be done through Main Menu/Import Save Data. This will allow you to start the game from the beginning.

Advantages


 * Able to change gender and looks.
 * Able to change name.


 * Able to read missed NPC conversations.


 * All items and equips are kept if Transfer All option is used.


 * Avatar cards, Mission records are intact.
 * Able to play with low ranked players in multiplayer.

Disadvantages


 * Unable to change code name, which is displayed in missions.
 * All story progression related stuff will revert to the beginning.


 * Equip craft list reverted to rank 1.


 * Looks/Clothes will be reverted to rank 1.


 * Only able to equip rank 1 equipment, higher rank equips will be locked until you reach the rank.

Will have to view the entries again to clear "New" status. Thus you cannot rebirth and instantly view the part where your character speaks.
 * All entries in Norm and Room Terminal reverted to rank 1.


 * Hairstyles reverted to rank 1.


 * Clear tick on missions will be gone.
 * Unable to play with higher ranked players in multiplayer

Thus, rebirthing is not recommended unless one is desperate to change looks.