J系制服女子えっちしよ : 濃厚性交ハメハメどっぴゅん
じぇーけい せいふく じょし えっち しよ : のうこう せいこう はめはめ どっぴゅん
est. Rough estimate based on volume count, reprints and magazine — not an official figure
External databases: MADB
How to compare editions, collected volumes and ISBNs / Sources, updates and corrections