About Morinaga, Souko
Souko Morinaga was the reason as to why the infinitely powerful, dangerous forbidden Book of Friends was created by its young adult creator of a topmost s exorcist. This is because her meetings with Reiko Natsume gave the latter the idea of challenging youkai to various games, duels and "fights" in exchange for their name as a way to kill time she never would have with fellow humans.
Source: Natsume Yuujinchou Wiki
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Morinaga, Souko
Ishikawa, Yui voices Sahara, Miyoko here
A Silent Voice
Ishikawa, Yui voices Ackerman, Mikasa here
Attack on Titan: Final Season - The Final Chapters
Ishikawa, Yui voices Ackerman, Mikasa here
Attack on Titan: The Last Attack
Ishikawa, Yui voices Ackerman, Mikasa here
Attack on Titan: Final Season
Ishikawa, Yui voices Ackerman, Mikasa here
Attack on Titan: Final Season Part 2
Ishikawa, Yui voices Evergarden, Violet here
Violet Evergarden
Ishikawa, Yui voices Ackerman, Mikasa here
Attack on Titan Season 3
Ishikawa, Yui voices Ackerman, Mikasa here
Attack on Titan
Ishikawa, Yui voices Ackerman, Mikasa here
Attack on Titan Season 2
Ishikawa, Yui voices Luluci here
Witch Hat Atelier
Ishikawa, Yui voices Evergarden, Violet here
Violet Evergarden: The Day You Understand "I Love You" Will Surely Come
Ishikawa, Yui voices Gen, Kasui here
Though I Am an Inept Villainess