[3] He also remembers being shocked by his parents' vinyl copy of Yōsui Inoue's Kōri no Sekai, and particularity impressed by its lyrics.

[3] Around the same time, his older brother gave him an X Japan cassette and he fell in love with the band after being shocked to hear them blend loud rock and classical music together, and by their visual appearance.

[3] Miya was a poor student in junior high; he had bad grades in every class except for music and physical education, because he did not attend them.

[8][9] Antique, their debut EP, was released in 1999 by Misshitsu Neurose, an independent record label formed by Cali Gari guitarist Ao Sakurai.

[10] Mucc later signed to Danger Crue Records and established their own sublabel, Shu, for the 2002 release of their second album Hōmura Uta.

At the end of 2003, Miya formed the rock band GeKiGaKutai (激楽隊) with Nezaki (La Vie En Rose), Tsuyoshi (Jully), and Yoshida (Three 9).

[17] He became interested in DJing when he saw the Disco Twins open for Yuksek and realized that DJs do not just provide something to dance to, they are also artists.

[18] He also organizes club events titled Mogwai, which feature fellow rock musicians acting as DJs.

[19] Miya provided guest guitar work on the title track of Roach's 2012 mini-album No Reason in the Pit, and co-mixed Tokyo Shoegazer's 2013 album Turnaround.

[22] He is also a member of X Suginami (X杉並), an X Japan cover band formed in 2015 with Dancho (Nogod), Yuu (Merry), Akane (ex-The Scanty), and Daisuke (Jupiter).

Featuring acts such as D'erlanger, Girugamesh, and Dezert, two installments were held; one in Osaka on August 29, and one in Tokyo on September 5.

[25] Miya was a guest at X Japan's April 11, 2018, concert at Zepp DiverCity, where he joined the band onstage for "Kurenai".

[26] When X Japan guitarist Sugizo was having difficulties acquiring a visa to enter the US for the band's April 14, 2018, performance at Coachella, Miya was named as his possible stand-in.

[31] That year he also arranged the music and played guitar and bass for a promotional video for the Obaken Zombie Land haunted house at Sanrio Puroland.

[33][34] Miya is a guitarist in the supergroup Petit Brabancon with Yukihiro, Kyo, antz (Tokyo Shoegazer), and Hirofumi Takamatsu (The Novembers).

[37][38] In 2021, Miya mastered the omnibus album Ibarakidai Bakuhatsu, which features numerous artists from his native Ibaraki Prefecture.

[39] Also for the album, Miya wrote, composed and arranged "Ibara" by 178R; a band consisting of him, Masashi Yamada (The Back Horn), Yuya Honda (Cock Roach), Satoshi Murata (Yagi Tsukai), and Kazi (Human Tail).

[45][46] He wrote the lyrics to and arranged the song "Nebula", which was composed by his Mucc bandmate Yukke, for the September 2023 Ensemble Stars!!

[3] Miya said prior to Zekū (2003) and Kuchiki no Tō (2004), his lyrics were about past events and "traumas" he experienced, but with those two albums he wrote about present inner feelings within the band.

[11] Despite audiences loving the shows, he seems to regret having done this as he speculated that he drank a lot on those tours so he would not have to face what he was expressing on stage, and stated that there is one song on Kuchiki no Tō that he will no longer play.

[13] In 2012, Miya said since he started DJing he has listened to a much wider range of music, and talking to the people at the clubs and bars provides him with a lot of material for lyrics.

[52] According to Aie of Deadman, Miya was one of many Ibaraki musicians who at one point imitated Cali Gari guitarist Ao Sakurai.

[49] In Petit Brabancon, Miya said that he takes the supporting guitar role, playing slightly behind Antz to give a three-dimensional sound.

[57] Miya also bought a Maybury Guitars Recycled RAM T-Type based purely on its appearance after seeing it on Instagram.

[57] In August 2022, he obtained a turquoise and pink Dragonfly Premero, a model designed in collaboration with Pablo of Pay Money to My Pain.

He saw the brand on Instagram and, unable to test it out, bought and imported a black and red Sludge727 Custom Shop Limited based on its appearance alone.

[59] Just before recording Mucc's 2022 album Shin Sekai, Miya received a black and green Sludge727 Custom Shop Limited with two humbucker pickups.

[59] Just before rehearsals for the tour, Miya received a different Sludge727, with a black and red paint job, that he mainly uses in Drop G tuning.

[59] Miya has a Mayones Regius 7, that he described as the exact opposite of the Hapas guitars as it is "very well-balanced" and has clean separation of highs and lows.