The mastermind likes to design systems when he has nothing to do. The output is very high, but few are useful, and defective products pile up in the warehouse.
So, the mastermind selected 100 players to bind to the system and throw them into the plane world. It's called testing system availability, but it's actually cleaning up inventory.
Concept: A love story between the bright, charming little sun and the cold-hearted iceberg