After killing those three, the oldest of the three sisters casually deprived them of their spatial rings, while Nina and Lina got a bit too into the fight and ended up destroying or damaging the rings of their opponents alongside their bodies, Mina's attacks and her flames perfectly avoided the loot.
It was understandable, after losing everything they owned and she being the oldest of the three, or more accurately the oldest of the four if we include Iris who is a few months younger than Lina, it was Mina the one in charge of managing the resources and wealth they obtained.
And not only theirs, Iris trusted all her assets to Mina, since in public they were her maids, though she openly treated them as her sisters and at closed door they accepted that, it was all to keep up appearances in front of the eyes of the Blazeheart, luckily it didn't matter anymore.
