For 10 points, name this novelist fond of writing about a mentally retarded child in his books like A Personal Matter and A Silent Cry.
The protagonist of one this author's works sings "Let us sing a song of cheers again, happy days are here again" before his mother comes to the hospital he is staying in. In one novel by this author, the titular group is forced to bury dead animals that have been infected. The protagonists of that work are themselves are locked in a storehouse until the Korean Li teaches the titular children to survive. That first work, which describes a man with liver cancer, is a parody of the patriotism of Yukio Mishima, this author's teacher. For 10 points, name this novelist fond of writing about a mentally retarded child in his books like A Personal Matter and A Silent Cry.
The protagonist of one this author's works sings "Let us sing a song of cheers again, happy days are here again" before his mother comes to the hospital he is staying in.
Oe Kenzaburo