Sono Oto wa Itsuka Ai ni Naru
その音はいつか愛になる · その おと わ いつか あい に なる
est. Rough estimate based on volume count, reprints and magazine — not an official figure
Overview
After the death of his parents, Kazuma moves to Tokyo on his own. Carrying his loneliness with him, he begins high school, where he meets Yuto, a warm and cheerful classmate who reaches out to him... (Source: Kadokawa, translated) Note: Includes one extra chapter.
Source: AniList
External databases: AniList
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