*~This fills you with Determination~* (Miraculous Ladybug/Undertale AU) --- Not-so-long ago, one young girl lived at the base of the looming Mt. Eiffel. Until one day, after an adventure into the woods, she falls down a hole and lands in a swarm of purple butterflies. Marinette has to find her way back to the surface, in whatever way that might be. As she goes on her adventure through this monster-filled world, she meets wonderful friends along the way and each help her to achieve her goal. But what will happen when she is forced to choose between her friends and her home? And what about that weird, pesky purple butterfly... Who is he? And where did he come? -SLOW UPDATES-
10 parts