Yohko Iwasaki
Iwasaki’s official home page is NEXT STREET (Japanese only).

NEXT STREET

Outo Ayakashi Kitan
王都妖奇譚

秋田書店: プリンセスコミックス
新書版
Outo Ayakashi Kitan

Akita Shoten:  Princess Comics
Shinsho-ban
cover
v.1:  ISBN-10:4-253-07801-X, 01/1991

cover
v.2:  ISBN-10:4-253-07802-8, 06/1991

cover
v.3:  ISBN-10:4-253-07803-6, 12/1991

cover
v.4:  ISBN-10:4-253-07804-4, 08/1992

cover
v.5:  ISBN-10:4-253-07805-2, 06/1993

cover
v.6:  ISBN-10:4-253-07806-0, 12/1993

cover
v.7:  ISBN-10:4-253-07807-9, 10/1994

cover
v.8:  ISBN-10:4-253-07808-7, 07/1995

cover
v.9:  ISBN-10:4-253-07809-5, 06/1996

cover
v.10:  ISBN-10:4-253-07810-9, 03/1997

cover
v.11:  ISBN-10:4-253-07811-7, 06/1998

cover
v.12:  ISBN-10:4-253-07812-5, 06/2002
王都妖奇譚

秋田書店: 秋田文庫
文庫版
Outo Ayakashi Kitan

Akita Shoten:  Akita Bunko
Bunko-ban
cover
v.1:  ISBN-10:4-253-17692-5, 08/2001

cover
v.2:  ISBN-10:4-253-17693-3, 10/2001

cover
v.3:  ISBN-10:4-253-17694-1, 12/2001

cover
v.4:  ISBN-10:4-253-17695-X, 02/2002

cover
v.5:  ISBN-10:4-253-17696-8, 04/2002

cover
v.6:  ISBN-10:4-253-17697-6, 06/2002

cover
v.7:  ISBN-10:4-253-17698-4, 10/2002
V.1 of the original release also includes the short piece Shouma (聖魔); v.2 contains Jaten Gouma Kou (邪天降魔行).

Akita Shoten also published a two-volume novelization [text by Rihito Arao (新生璃人)], and there was a related CD drama series.  A short live-action TV series titled Onmyouji Abeno Seimei:  Outo Ayakashi Kitan (陰陽師  安部清明  王都妖奇譚) was also based on this comic.

Burai
無頼

角川書店: あすかコミックス
新書版
Burai

Kadokawa Shoten:  Asuka Comics
Shinsho-ban
v.1:  ISBN-10:4-04-924693-7, 11/1997
v.2:  ISBN-10:4-04-924740-2, 07/1998
v.3:  ISBN-10:4-04-924768-2, 02/1999

v.4:  ISBN-10:4-04-924783-6, 07/1999
v.5:  ISBN-10:4-04-924814-X, 03/2000
Burai seems to have a complicated publication history.  The following two listings seem to be best considered as separate titles, although obviously they are connected, and in some cases apparently even have some of the same contents.
Burai:  Mato Kakusei
無頼  魔都覚醒

角川書店: あすかコミックス
新書版
Burai:  Mato Kakusei

Kadokawa Shoten:  Asuka Comics
Shinsho-ban
v.1:  ISBN-10:4-04-924848-4, 12/2000
cover
v.2:  ISBN-10:4-04-924878-6, 09/2001
Iwasaki mentions on her web site that some of the pieces serialized under this title in Asuka Mystery DX are not included in this edition.  However, there seem to be no plans for a third volume to be released.
Shinsengumi Iroku:  Burai*
新選組異録  無頼

秋田書店: 秋田文庫
文庫版
Shinsengumi Iroku:  Burai*

Akita Shoten:  Akita Bunko
Bunko-ban
cover
v.1:  ISBN-10:4-253-17767-0, 06/2004

cover
v.2:  ISBN-10:4-253-17768-9, 06/2004

cover
v.3:  ISBN-10:4-253-17769-7, 08/2004

Other Works:

Iwasaki released the adventure comic Romangari* (浪漫狩り) 1-7 and its prequel Romangari Zero* (浪漫狩り  Zero), both published by Akita Shoten under Princess Comics.

Like so many female comics artists, she also adapts romance novels:

  • Kakuu no Koibito (架空の恋人), from The Billionaire Boss’s Secretary Bride by Helen Brooks
  • Robyn Donald's Innocent Mistress, Royal Wife, under the title Honoo no Dress no Yuuwaku (炎のドレスの誘惑)
  • Michele Dunaway's The Wedding Secret, as Propose wa Kekkon Shiki de (プロポーズは結婚式で)
  • Tsuioku no First Love* (追憶のファースト・ ラブ), from Lone Star Seduction by Day Leclaire
  • Ai no Yuragi (愛のゆらぎ), from Leslie Kelly's Into the Fire
  • Koi ni Ochita Daifugou (恋に落ちた大富豪), from Anna Cleary's Untamed Billionaire, Undressed Virgin
  • Nerawareta Muku (狙われた無垢), from The Most Coveted Prize by Penny Jordan

All were published by Harlequin (ハーレクイン), now HarperCollins Japan (ハーパーコリンズ・ ジャパン), under Harlequin Comics (ハーレクインコミックス).  Many of Iwasaki's romance titles have been released electronically and in English translation.

She also did some of the art for Gyosei (ぎょうせい)’s Himitsu no Namae Naani (ひみつのなまえなあに), volume 7 of their Petit Famille series.  And she illustrated the Kachi-kachi Yama (かちかちやま) picture book written by Kaneyoshi Nakayama (中山兼芳) and published by Gakushuu Kenkyuu Sha* (学習研究社), aka Gakken (学研).