Groups
- korori tei 3
- kororofu 71
- koroshiya tesshin 1
- koroukan 5
- korupon tantei dan 2
- koruri-ya 4
- kosai 1
- kosajisanbai 3
- kosakunin retsuden 4
- koshougarai 1
- kosmos keiei 1
- kosokoso beya 15
- kossorieni 1
- kossorikakuredokoro 90
- kosuko teikoku 37
- kosuru buta 1
- kotacyuya 3
- kotakani 1
- kotake souhonke 1
- kotama-room 2
- kotatsu de mikan chokubaijo 28
- kotatsu guild 16
- kotatsu mikan 5
- kotatsu ni nikan 1
- kotatsu no tsukaima 15
- kotatsu oden 2
- kotatsu room 3
- kotatsuya 20
- kotau 26
- kotaya 2
- kotee 64
- kotei gainen 8
- kotei shosai 2
- koterabyte 9
- kotetsutowadachi 1
- koti 22
- kotijan 4
- kotoba 1
- kotoba asobi 6
- kotobuki chop 3
- kotobukidou 1
- kotobukiya 8
- kotobukiza 3
- kotokaze 9
- kotonoha 8
- kotonoha works 2
- kotonosha 30
- kotonoya 11
- kotori 4
- kotori jimusho 32