I won't elaborate on this point, all the clues need to be deduced.
It is reasonable to estimate that Julia maesa's ceremony of inheriting the identity of the Sword of the Brave is probably similar to Farui's inheritance of Almea's Black Sutra, and it is a way of introducing souls (Almeia and Lala both loved Mephisto fellers). It is likely that this inheritance is more unique, which leads to Julia maesa's own soul being completely suppressed (and may even have disappeared), and Ulysses knows this and his sister is gone, so he is extremely sad. The cause of this incident is not clear, but it seems to be related to Ulysses' inability to protect someone or something.
3. Lala, once a friend of Sword of the Brave and Almea, is another girl who likes Mephisto fellers.
Lana, an alternative swordsman among Meizu witches, is a horrible swordsman. Is also a woman like Ulysses in the past.
The rest are fond of the so-and-so gods of Ulysses, and the romantic debts owed by the so-and-so demons of Ulysses and the former city. In addition to these two, there are Lana, dreamer Aya, Mercury Sword and other rose girls, Sariel (who has disappeared) and Ye Sha (who may have overthrown her father in a previous life), etc., plus Aya, Apostle Tu Tu Tutuan, rasputin, Dark Bride Fari and Angela who got into trouble in this life.