Serafini has worked in different countries including Hong Kong, Japan, Italy, Germany, and Thailand – where he made an appearance as the final MC at the 2013 You2Play Awards.

[7][8] He is also the co-founder of Unlisted Community, the founder of a video game studio in Tokyo called Serafini Productions[9] and the author of several digital manga, including UNSUBSCRIBERS and YTHS.

[10][11] Serafini was a member of Italian visual rock band DNR (Dreams Not Reality) playing keyboard and performing vocals from 2011 to 2013 under the name "Seba".

He opened up for Versailles on 4 June 2011 in Salerno,[6][12][13][14] and he played at the 2011 V-Rock Festival held at Saitama Super Arena.

[21][22] With Seba's lineup, DNR was the first non-Japanese band to perform at the Stylish Wave event at Akasaka BLITZ.

[23] Seba had also teamed up with Yu Phoenix of Cinema Bizarre to create a band called Monochrome Hearts, which seems to have since dissolved.

In October 2015 three singles were released: "Akane" (the video for which was granted rights for the first time ever to film inside of Buonconsiglio Castle),[48][49][50][51] "Tsubasa",[52] and a new mix of "When the Night Kills the Day".

The Fragile, Toni & Guy, Paul Smith,[61] Jury Black,[62][63][64] Blablahospital, tenuto by kawano,[65] and True Religion.