Yea. Sekai is the Sustained, and the others are what she can do once it's up. Like, Byakuya can't use Senkei or Gokei without using his Bankai first. And Wolf of Bees, makes her whole body stronger by absorbing the light in Beowulf, but Cocentration puts all that strength into a certain spot, so that spot gets even more stronger than usual, but the rest of the body loses the buff.