Can only be obtained through drops. Invisible equipment cannot be synthesized using the Cain’s Box, nor can it be purchased from NPCs. It can only be obtained randomly by defeating monsters, opening treasure chests, or breaking objects in the scene. https://kralmod.com/cap-nhat-keo-nha-cai-anh-vs-iran-lien-tuc-thong-tin-nong-hoi-anh-em-khong-the-bo-qua/