As far I remember the story was about about junior brother very weak and sick and was taken by his teacher and he who was very attached to his teacher and loved him very much was left alone when his teacher "died" that what everyone thought and the girl of his senior brother made him look for something that costed his life. He was left there half dead half alive and through his spirit he found his teacher and heard his teacher thought about himself and that he was alive and didn't want to go back and wanted to completely disappear etc. Please help me find the name Thank you in advance