Talk:Mikansei na Bokura/@comment-47.16.195.204-20180221043740/@comment-33431665-20180221050610

It is explained in Part 3 of the story. As this would be considered spoilers, it should not be said outright in wiki comments; however, it begins in Part 3 Chapter 6.4 and continues on for a while. You can find the translations for this here.