Board Thread:Questions and Answers/@comment-6576725-20180811021454

After Diamond is Unbreakable ended we never seen pre reboot Josuke again. The only other character to make an appearance after that part was Koichi. But why was Koichi sent alone to investigate Josuke? Why didn't he help Jotaro with Jolyne and Johngalli A. His stand would've have certainly been useful to have in both scenarios. 