ok so the way I see it, it's been 8 years since MC had not seen ML. Until eventually he goes as a volunteer to teach the visually impaired (ML) to read in braille. He knew ML would recognize his voice which basically showed him that MC has grown to learn to be independent without needing him and overcame his trauma. Also mc knows ML is on death row and the word "forgiven" is seen on the textbook which I take it as he forgives him for all the pain he's caused (before he dies alone in prison.) And MC smiling when ML asks him if he'll be back could be a silent answer of him saying "no, this will be the last time. farewell"
ok so the way I see it, it's been 8 years since MC had not seen ML. Until eventually he goes as a volunteer to teach the visually impaired (ML) to read in braille. He knew ML would recognize his voice which basically showed him that MC has grown to learn to be independent without needing him and overcame his trauma. Also mc knows ML is on death row and the word "forgiven" is seen on the textbook which I take it as he forgives him for all the pain he's caused (before he dies alone in prison.) And MC smiling when ML asks him if he'll be back could be a silent answer of him saying "no, this will be the last time. farewell"