Ryou takes Akari home with him and soon his little sister Kimi starts to grow fond of Akari in spite of herself, and the three wind up declaring themselves a family, after which Akari moves into the Ninomiya household. Akari is introduced to Hikari and learns that she too came from space. Jennifer suggests that they used to be one being with no body, and then divided into two and gained bodies after they got to Earth.
熱を出したアカリを連れて自宅に帰ったリョウ。兄のリョウがアカリを連れてきたことに驚く紀美。最初は迷惑顔だった紀美だが、アカリがひとりぼっちだと聞くと、放っておけず面倒を見るようになる。ジェニファーの「二人はもともと一つだったのでは」という話から、二人は自分たちが姉妹のようだと互いに喜ぶのだが…。