the senpai its maybe GF ex boyfriend or its keith there are 2 keith in the beginning you battle the dad and if you lose you die taken by the dad in the video game like as the senpai said he'll kill the dad its you everytime you lose in GF dads battle and everyone though it was pico as the ex boyfriend or maybe its GF brother and there soul is stuck in there forever they needed someone to get out of here in the game it all make sense pico and the GF and keith bump eachother so they did what they did IT MAKE SENSE