Itsukushimu, Sa wo Shika no Koe
いつくしむ、さを鹿の声 · いつくしむ 、 さ お しか の こえ
est. Rough estimate based on volume count, reprints and magazine — not an official figure
Overview
Note: Includes one extra chapter.
Source: AniList
External databases: MADB · AniList
How to compare editions, collected volumes and ISBNs / Sources, updates and corrections