Groups
- siizec 2
- silos 2
- silver bullet automatic 2
- silver candy 2
- silver ring 2
- silverlovesong 2
- simauma 2
- simauradou 2
- similacra 2
- simotsuke 2
- simotsukekai 2
- sin mal-chan doukoukai 2
- sing of devil 2
- singsong sun 2
- sinizon 2
- sinon 2
- sinson 2
- sintax error 2
- sippudo 2
- sirius. 2
- sirousagicafe 2
- sissch 2
- sjf 2
- skc studio 2
- skill up 2
- sky rocket 2
- sky-breaker 2
- skycolours 2
- slamp 2
- sludge 2
- slump life phv 2
- smashing pumpkin 2
- smg hormone x 2
- smgo 2
- smilesenki 2
- smoke 2
- so 2
- sodom teikoku 2
- softec 2
- soiree 2
- sokuseki maou 2
- sollunea 2
- solo539 2
- solullaby 2
- somariya 2
- sombrero 2
- sonnet 2
- sora no colors 2
- sora plus 2
- soragokoro 2