- Name: Masaya Oya (大箭将也)
- Birthdate: September 28th, 1992
- Birthplace: Asahikawa, Hokkaido
- Homepage: http://cametek.jp/
- Twitter: https://twitter.com/cametek
- SoundCloud: https://soundcloud.com/cametek
Masaya Oya, also known as かめりあ (Camellia) and Cametek, is a VOCALOID producer and one of the rising artists in the Japanese EDM scene. A frequent contributor to FLOOR contests and one of the two primary winners of the KAC2013 Original Song Contest, he's become one of the major names in the SOUND VOLTEX series, known for composing fast songs that often average around 200 BPM or higher. Outside of BEMANI, he often releases his albums under his own circle, かめるかめりあ (KamelCamellia). He's also a member of EXIT TUNES Dance Production as well as Masayoshi Minoshima's DOWNFORCE and Alstroemeria Records labels, and his popularity has allowed him to appear as a guest in many doujin circles such as HARDCORE TANO*C and Diverse System.
Masaya is an all-round artist, being proficient on piano, bass, and guitar, as well as for having a varied music style, having dabbled in several styles and countless genres. He's well versed on EDM, dubstep/drumstep, electro, glitch hop, and psytrance, but often does trap, hardcore, hardstyle, and speedcore. He also composes denpa music, often collaborating and even releasing a few albums together with vocalist nanahira.
- Camellia often replicates 猫叉Master's sounds in his songs.
- Camellia did the theme for the Steel Chronicle VICTROOPERS Ver3.5 introduction video, INSECTICIDE, which is available here.
- Outside of BEMANI, Camellia has a song in SEGA's Project DIVA Arcade Future Tone arcade game, titled システマティック・ラヴ (systematic love).
- ハニージンジャーエール (2010)
- TRIPPERS (2011)
- mikUbiquity (2011)
- michno-sequence (2012)
- Stance on Wave (2013)
- paroxysm (2013)
- [diffraction] (2014)
- Sudden Shower (2014)
- ばーさす！ (2014, with ななひら)
- dreamless wanderer (2014)
- LOP STEP RABBITS! (2014, with ななひら)
- PLANET//SHAPER (2015)
- りぷれい！ (2015, with ななひら)
- crystallized (2015)
- INSANE INFLAME (2016)
- MEGANTO METEOR (2016)
- すりーぷ！ (2016, with ななひら)
- REALITY DISTORTION (2016, with Akira Complex)
- Camellia "Guest Tracks" SUMMARY & VIPs 01 (2017)
- INVAIDAS FROM DA JUNGLE (2017)
- ふぉーす！ (2017, with ななひら)
- GALAXY BURST (2018)
- Mira (2018, with kradness)