円 & テツ神山 Costar Works

円 and テツ神山 are an established costar duo, teaming up across 2 works from their initial collaboration '胸元からおっぱいチラチラ見せてフル勃起SEXを誘うお姉さん！' (2020) to '私の彼氏は担任のM男先生 M男大好きJ●とイチャサド調教学園生活 円井萌華' (2023). Their collaborations are predominantly released under the 犬/妄想族 label, demonstrating exceptional on-screen chemistry in genres such as 痴女・女子校生・妄想族.