Go on an adventure with Luna and her boyfriend to pay back debt and get married. Luna, an adventurer, finds herself in a platonic relationship with her boyfriend, who is also an adventurer. They arrange to meet at his house to discuss an important matter. Luna becomes anxious as he begins talking about his future plans, and just as she is about to propose to him, a group of notorious men unexpectedly enter the house.
These men accuse her boyfriend of still owing them money, even though he had already paid off the debt. They demand an outrageous sum of 10 million Gigabytes.