Mamori no Shoujo*
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| ISBN-10:4-253-12509-3, 06/1986 | |||||||||
| The story was written by Shirou Moriguchi* (森口史郎). | |||||||||
Jigoku no Gakuen*
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 ISBN-10:4-253-12527-1, 02/1987 |
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Jigoku ni Tsuzuku Heya
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| ISBN-10:4-253-12580-8, 09/1988 | |||||||||