though there are many strange circumstances, the author will probably clear them all up. he doesn't seem to want to leave a lot of loose ends. why else would he make permanent pairings for somewhat irrelevant characters?(shiratori, chiba, etc) also, because it is fictional, DC could just have a time gap that shows the highschoolers as adults, so what age they are now doesn't really prove a problem, romance-wise. lastly, aoyama will surely find the antidote. that's why ova 9 exists, ne~ :-D ?