Always works with a niconico user, Ogakuzu (sahiro). Almost all of Rappatu's web comics are based on Ogakuzu's story plots.
Nickname 喇叭 (reading is given as "Rappa" - meaning "trumpet")
Old name: ラパッツ (Rapattu or Rapattsu)
Circle: らっぱ屋 (Rappa-ya - meaning "trumpet store")
Old site name: －荘－