Ryôsuke Ikeoka

Facing goodbyes and graduation, Naomi Nakashima, her childhood friend Satoshi Mochida, and their classmates, are clearing up after their last ever cultural festival, when horror buff class representative Ayumi Shinozaki decides to perform Sachiko Ever After so they will stay friends forever. Instead, they were whisked away to a haunted graduation ceremony for Heavenly Host Elementary School, forced to close after a series of gruesome murders. What fate awaits Naomi and her friends...? (imdb)

The Kisigari students return to Heavenly Host Elementary where if you die, the memory of you will forever be lost. (imdb)

Shindo Minato is an autistic young male with savant syndrome, who has always struggled to communicate well with others but is gifted with an outstanding memory and exceptional spatial abilities. Aspiring to become a doctor and help support the lives of children, he joins the hospital's pediatric department as a medical resident.