Oohhhhhh, that's too bad! So from your experience, are there bosses from higher lvl maps that have manyus as drops, or is it very rare for non-event bosses?
So far the 3 highest tier bosses so far - the Demonic Caterpie, the Wasp and the Cockroach > none of them drops manyus.
Caterpie and Wasp drops Equipment Okiteru (manyus for equipment).