Due to the Bug, the surface became a wasteland. Fissures opened all over the Earth, giving birth to Crevasses. Inside them were our cities that should have vanished. But the structures are slightly warped and inexplicable.

And there, monsters were found (Awe)

Apparently, if you dismantle and process these monsters, they become resources. The fool who thought, "We can rebuild! Let's go collect them!" is probably in a monster's belly by now.

The monsters came to be known as Bug Fragments, or simply Fragments.

Those who stand against the Fragments, dismantling them for money the sake of the people's resources...

Those are the Skiers.

MSC is the general term for the companies that hire Skiers. If you're a Skier, you have to join one, or you won't get paid and you won't get any decent work—

Rarely, there are heretics who absorb Fragments and transcend human limits. This violates MSC regulations and is grounds for permanent exile or disposal, but it seems some corporations, eyeing their high abilities, are creating new agencies.

Order

• World-famous
• Elite MSC only for 3rd Class and above
• Full of eccentrics
• The standard. Often dispatched overseas

SOLID

• Most famous domestically
• Community-based MSC for Japanese people
• Extremely rich data on the Japan area

Ark

• Strict
• A company that loves rules
• Practically a military
• Lowest mortality rate, stable income
• The loudest at executive meetings

Lob

• Great benefits
• No Japan branch. Operates entirely in Europe
• The most "white" company, supportive of Skiers
• Rumored to have the highest mortality rate

FLAT

• Too many mysteries
• Why are there only strong people here?
• Why do they have so much Fragment data?
• Say something.

..."Snowboarder" is a derogatory term for a Skier who has successfully absorbed a Fragment.