If the person who made the greatest contribution is 3 or more Lv.s higher than the raid monster, then the item/Adena rewards will decrease. If the difference is 9 or more Lv.s, the monster will drop nothing at all.

This Riba follows Arachne Orfen. Unlike other monsters living in the Sea of Spores, he possesses great intelligence and profound magical knowledge. At Orfen's command, he is searching for flaws in the Ivory Tower's magic force field, which blocks the spores from advancing.

They consist of insects, spiders and worms and act upon their highly refined instincts. Sometimes their instincts present themselves in a more developed form than that of humanoid society.