The last day spent with my sister who is getting married. Yamamoto Renka

Brother and sister who lost their parents and lived alone. In that life, the younger brother had a strange affection for the older sister. Such an older sister will get married and leave. While wishing for his sister's happiness, his younger brother, who wants to stop him because he doesn't want to become someone else's, takes a forbidden action! ? A momentary day when I know that my sister who wants to accept that feeling is no good, but I get entangled.