Sayonara Koibito, Mata Kite Tomodachi: Lost Child

The first tankōbon volume of the series’ spin-off, **Sayonara Koibito, Mata Kite Tomodachi ~Miyauchi Yuki ni Tsuite *vol. 1*~**, was titled **Sayonara Koibito, Mata Kite Tomodachi ~Lost Child *vol. 2*~** when it was serialized in the Omegaverse Project magazine.