 The theme of the album is about life in the city, which is why the album is called Nin9 2 5ive (9-5, symbolising the average "city person's" working hours).As with Joey's last two albums, this album also includes several preludes and interludes.The character 溶 is just a shorter and more simple version of 凝溶 (溶 means Melt, while 凝溶 means Solidify).