What is Le;0 - Ash to Leviathan about?

Le;0 - Ash to Leviathan is a novel.

Is Le;0 - Ash to Leviathan still ongoing?

Le;0 - Ash to Leviathan is currently finished.

FINISHEDNOVEL

Le;0 -灰とリヴァイアサン-

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What is Le;0 - Ash to Leviathan about?: Le;0 - Ash to Leviathan is a novel.
Is Le;0 - Ash to Leviathan still ongoing?: Le;0 - Ash to Leviathan is currently finished.