; Paradigm Novels by Paradigm* Tsuyokiss "Kurogane Otome-hen" - ISBN 4-89490-780-1* Tsuyokiss "Yashi Nagomi-hen" - ISBN 4-89490-788-7* Tsuyokiss "Kiriya Erika-hen" - ISBN 4-89490-796-8* Tsuyokiss "Kanisawa Kinu-hen" - ISBN 4-89490-804-2: written by Haruka Fuse* Tsuyokiss "Konoe Sunao-hen" - ISBN 978-4-89490-830-7: written by Kazuhiko Okita; Sofugare Novels by Softgarage* Tsuyokiss "Bangaihen Nakomi no Christmas" - ISBN 4-86133-064-5: written by Chiruda Sasamiya, illustrated by Denki Shōgun* Tsuyokiss "Bangaihen 2 Ohanami ni ikou" - ISBN 4-86133-076-9: written by Tomo Mikado, illustrated by Denki Shōgun* Tsuyokiss "Bangaihen 3 Konote ni nigirumono" - ISBN 4-86133-077-7* Tsuyokiss "Bangaihen 4 Aki no Majutsu" - ISBN 4-86133-085-8* Tsuyokiss "Bangaihen 5 Ai no Arashi" - ISBN 978-4-86133-093-3: written by Tomo Mikado and Fūichirō Noyama, illustrated by Denki Shōgun; Nijiken Game Novels by Kill Time Communication* Tsuyokiss another story "Yashi Nagomi no Baai" - ISBN 4-86032-244-4* Tsuyokiss another story "Kurokane Otome no Baai" - ISBN 4-86032-285-1* Tsuyokiss another story "Kiriya Erika no Baai" - ISBN 4-86032-314-9* Tsuyokiss another story "Yashi Nagomi no Baai 2" - ISBN 978-4-86032-361-5: written by Kasao Sakaki, illustrated by Jōji Shinozuka* Tsuyokiss another story "Konoe Suao no Baai" - ISBN 978-4-86032-409-4: written by Kasao Sakaki, illustrated by Keiko Yoshino and Fezādo Graphic===Books===One fanbook for the PC version and one guidebook for the PS2 version were published in Japan.
; Paradigm* Tsuyokiss "Kurogane Otome-hen" — ISBN 4-89490-780-1* Tsuyokiss "Yashi Nagomi-hen" — ISBN 4-89490-788-7* Tsuyokiss "Kiriya Erika-hen" — ISBN 4-89490-796-8* Tsuyokiss "Kanisawa Kinu-hen" — ISBN 4-89490-804-2: written by Haruka Fuse* Tsuyokiss "Konoe Sunao-hen" — ISBN 978-4-89490-830-7; Softgarage* Tsuyokiss "Bangaihen Nakomi no Christmas" — ISBN 4-86133-064-5: written by Chiruda Sasamiya, illustrated by Denki Shōgun* Tsuyokiss "Bangaihen 2 Ohanami ni ikou" — ISBN 4-86133-076-9: written by Tomo Mikado, illustrated by Denki Shōgun* Tsuyokiss "Bangaihen 3 Konote ni nigirumono" — ISBN 4-86133-077-7* Tsuyokiss "Bangaihen 4 Aki no Majutsu" — ISBN 4-86133-085-8* Tsuyokiss "Bangaihen 5 Ai no Arashi" — ISBN 978-4-86133-093-3; Kill Time Communication* Tsuyokiss another story "Yashi Nagomi no Baai" — ISBN 4-86032-244-4* Tsuyokiss another story "Kurokane Otome no Baai" — ISBN 4-86032-285-1* Tsuyokiss another story "Kiriya Erika no Baai" — ISBN 4-86032-314-9* Tsuyokiss another story "Yashi Nagomi no Baai 2" — ISBN 978-4-86032-361-5: written by Kasao Sakaki, illustrated by Jōji Shinozuka* Tsuyokiss another story "Konoe Suao no Baai" — ISBN 978-4-86032-409-4: автор: Касао Сакаки; художник Кэйко Ёсино и Fezādo Graphic* Tsuyokiss** Официальный сайт игры для PS2** Официальный сайт игры для PC** Официальный сайт игры для Minikiss* Tsuyokiss Nigakki** Официальный сайт игры для PC** Официальный сайт игры для PS2** Официальный сайт игры для PSP* Tsuyokiss Sangakki** Официальный сайт игры