竹内有紀 & 桜井ちんたろう Costar Works

竹内有紀 and 桜井ちんたろう are an established costar duo, teaming up across 4 works from their initial collaboration '爽やか女子アナがイクイク絶頂 ポルチオ開発マッサージ 竹内有紀' (2019) to '快楽拷問女体改造 脳に絶頂装置を埋め込まれ、この世で最も憎い相手にイカされ続けた女捜査官 竹内有紀' (2026). Their collaborations are predominantly released under the プレミアム label, demonstrating exceptional on-screen chemistry in genres such as デジモ・淫乱・ハード系.