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I'm going to delete this first and ask questions later to avoid potentially wasting time by contributing more of this series.
This does not look like a visual novel to me, almost all marketing I see on it is focussed on gameplay. Additionally, the title is sufficiently popular that, if it was a VN, it likely would have been added ages ago. See d2#1 for our inclusion criteria, and feel free to bring this up on the forums for discussion.