!!Major Spoilers!! Man don't you hate it when a character you really like turns out to be the mastermind??? It brings lots of Despair heh heh heh.... Tsumugi how could youuuuuu
Trypophobia is a proposed phobia (intense, irrational fear, or anxiety) of irregular patterns or clusters of small holes or bumps. If you're looking for the song, it's called amydala's ragdoll by GHOST. Some people like to photoshop images to bug Trypophobics and the results are pretty nasty (Like small holes in human eyes, ect) so I suggest not looking it up. If you're curious though I guess I can't stop you...just don't say I didn't warn you!