Dimensional Landlord Starting from Check-ins

Bai Miao grabbed the bag, holding both ends of the shell inside it, and brought it close to her mouth as she called out, “Check in.”

[Check-in successful. Obtained: Cotton Cloth ×3]

The three sisters depended on each other for survival, drifting endlessly on a boat.
Until one day, Bai Xi picked up a beautiful shell. From that day onward, their lives began to change.

Content Tags:

Time Travel, Business/Management, Lighthearted, Multiverse / Different Planes, Check-in System

One-sentence summary:
Checking in with a shell, traveling on a great ship, becoming landlords across different dimensions.