Nah, seaweed was definitely devil's friend from way back.
Back then seaweed was playing pubg with some of the cr dudes before they joined cr, devil happened to be in same room and knew him immediately when she died and viewpoint changed to seaweed's (think YouTube still has it if you search seaweed past life name)
Plus he attended small concert for some utaite like devil past life and wolf past life also knew him as well (was even glad could hear him sing, before he so called "retired"maybe to prepare for joining holostars).
Devil also took picture with him after the concert ended.
All these could be found in their past life Twitter lol if you dig somewhat deep enough.
