Chitose-kun wa Ramune Bin no Naka / チラムネ / ちとせくんはラムネびんのなか / Chitose-kun ha Ramune Bin no Naka / Chiramune / Chitose Kun wa Ramunebin no Naka / Chitose kun ha Ramune Bin no Naka / Chitose Kun wa Ramune Bin no Naka / 弾珠汽水瓶裡的千歲同學 / Chitose is in Ramune Bottle