The cold girl was forced to embark on her own dungeon path because of her resistance.
In the dungeon world, you gain your own family and teammates who fight side by side. Growth, fatigue, and gains are all a process of growing up along the way.
The dungeon world of Infinite Stream is so big that she is forced to just look at the scenery. She is not afraid, she enjoys it, and she will always grow, sooner or later.
Purpose: growth and protection