Suzumu (スズム) is a producer most notable for making arrangement covers for both VOCALOID and non-VOCALOID works. Examples for VOCALOID covers would be Neru's "Tokyo Teddy Bear" and 150P's "Kodoku no Kakurenbo". As for non-VOCALOID works, he often collaborates with the utaite Soraru and Lon, and illustrators Saine and MACCO, in their circle, Asukasoromanya-z. Suzumu is also known for his collabs with kemu, for the Pandora Voxx series as "SMC." However, he is a lyricist too, having written lyrics of the Bookmark of Demise Project.