Talk:The Dragonfly/@comment-2601:204:E600:9EB:ED93:9B11:6814:92F5-20190403070312/@comment-38109392-20190404032527

Please see the obtaining section of the Carbon Fiber page for all of your options.

Basically, since you haven't defeated the third or fourth boss of Ingall's Mine, you can't hire the Civil Corps to run either level for you, so you're stuck with two options: You may also need to obtain better clothing or weapons to defeat the boss, and/or try to get more furniture to augment the stats you need to survive. Making buff consumables to help you in battle can also help greatly.
 * 1) mining in the Abandoned Ruins (which will be incredibly tedious), or
 * 2) grinding experience to level up to defeat the boss.