It's great that the 4th Boss has appeared. Unfortunately, there were some errors. You know very well what I am talking about.
Giving the Instal Kill skill wasn't a very good move.
The change from 2% to 1% of Amaterasu's damage taken was unnecessary. Who did it bother?
Maybe it's time to refresh 2 old Bosses too?
Maybe it's time to make an event more related to them?
In general, I consider it a mistake to create such an ability in the game.
And creating a Gemini talisman that does not work properly from the beginning, despite several updates, I consider to be one of the biggest mistakes.
I'm glad that there are new characters related to other bands.
I think you should increase the character and talisman cap to 1200-1500 for more fluidity when opening souls.
Adding the option to open more than 99 souls at once would be nice too.
The drawings of the new characters are very cool, I'm curious what skills they will have and if they will actually change anything in the game, because unfortunately we only use a handful of characters because of your misguided policy. You have created 8-10 very strong characters that leave other characters unused.
I think giving away characters for free is a mistake! It should be possible to obtain each character by completing quests of adequate difficulty to the strength of the character.
I'm afraid of what bad the April update will bring. I wish my negative feeling didn't come true.
I know you're trying. I hope I don't sound too pessimistic

Up the Irons!