[request] gera

HP: https://gera.fan/

WEB: https://play.gera.fan/episode/oiSLIsXjgiCRwQTrcBI4
APP: https://play.google.com/store/apps/details?id=fan.gera.app&hl=ja

  web version is just a simple MP3, so implementation might not be necessary.
  app version is the main focus.