K & 山形健 Costar Works

K and 山形健 are an established costar duo, teaming up across 3 works from their initial collaboration '［渋谷］某日サロ店員黒ギャルハルキのHなアルバイト' (2010) to '［渋谷］某クラブで知り合った爆乳ギャルエリカのHなアルバイト' (2011). Their collaborations are predominantly released under the ハヤブサ label, demonstrating exceptional on-screen chemistry in genres such as ギャル・顔射・巨乳.