[H2CO3 (tansan)] THE STORY BEHIND (Osomatsu-san)
[H2CO3 (炭酸)] THE STORY BEHIND (おそ松さん)
23 pages
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Story & Details
[H2CO3 (tansan)] THE STORY BEHIND (Osomatsu-san) is a doujinshi based on osomatsu-san featuring 23 illustrated pages.
This work is created by tansan and was published on February 21, 2026.