Sumi Mustard Seed is a Buddhist term, from which the highest-grade storage tool is derived. Although Luoyun Huan has not read many Immortal Cultivation Novels, she is well aware of this basic knowledge.
Ordinary Storage Bags cannot store living creatures; even if they can, they are limited to low-tier, low-intelligence creatures like fish and frogs.
A Sumi Mustard Seed is entirely different. Leaving aside living creatures, even stuffing oneself inside and hiding poses no problem at all.
Chapter 78