He is Miwako 's childhood friend turned boyfriend .
This was the cause of the split in friendship between Miwako and Hiroyuki , having told Miwako that she could no longer see him anymore .
He is Miwako 's childhood friend turned boyfriend , and this was the cause of the split in friendship between Miwako and Hiroyuki , having told Miwako that she could no longer see him anymore .