ICBunko reflect the changing needs of successor generations of young Japanese children growing up bilingual or as ‘double children’ with two identities and two languages. Through sharing and borrowing Japanese picture books and kamishibai (paper theatres) and enjoying related activities with other Japanese children and their parents, children unconsciously increase their own language ability. Through dialogues Bunko staff help bilingual children naturally acquire more of their weaker language and find out about Japanese culture.