Kojin Jugyou is the second solo single by former lead vocalist of day after tomorrow, misono. The single peaked on the Oricon charts at No. 15 and remained on the charts for four weeks.

"VS" is the debut single by Koda Misono, under the stage name "misono." misono is the former lead vocalist of the Japanese group day after tomorrow and the younger sister of singer-songwriter Koda Kumi. It was the first single released for her studio album Never+Land, and carried a fairy tale theme, as would the following singles.