Unlockable characters?

[Felipehc188]

Hi, someone knows how to unlock the hidden characters, either during story mode or NG+? I want to unlock Lux and Seven. Thanks in advance.

[Thea]

Sumeragi

• Complete main story
  
• Go to Woglinde (first area) and find Sumeragi
  
• Have a conversation with him and he'll become a playable character

Seven

• Complete main story
  
• As Kirito, check the north west gate and complete Rain's subevents.
  
• Go to the weapon shop and complete Seven's subevents.
  
• After completing those subevents, go back to the weapon shop and talk to Seven again
  
• Beat Level 1000, Lost Song
  
• Seven will become playable and that quest will be added to the quest list

Lux

• Complete main story
  
• Have Silica, Leafa or Lisbeth in your party (or all of them if you want to be safe)
  
• Walk around the Sky City Ryne and find an Undine that is talking about someone who looks like Kirito. They may not have a marker on the map.
  
• Head to the final area in the game and head to the dungeon that is the most northeast on the map. Complete the dungeon to unlock Lux.

Black Lotus

• Complete main story (may not be necessary but not sure)
  
• Complete all of Strea's subevents
  
• Fight Black Lotus. It doesn't matter if you win or lose
  
• Go to the Inn and she should be unlocked.

[Felipehc188]

Thanks! Very appreciated!

[Akajaro]

I know this is like 6 years old at this point, but for anyone who's still playing this and had trouble the way I did, you need to unlock Sumeragi before you can unlock Seven. The rest can be done in any order, but Seven won't show up if you haven't recruited Sumeragi.