This is exactly the kind of report I find hard to dismiss. Hovering is the key word for me - drones drift and wobble, helicopters make noise, but a genuinely hovering object that just sits there is a different thing altogether.
Can I ask a few questions? How long did it hover for, and did it make any sound at all? Also what colour was it and roughly how high up would you say? I'm based in Japan and we get some odd reports here too but nothing I've personally witnessed yet so I'm going on other peoples accounts mostly.
The reason I ask about sound is that a lot of these sightings get written off as drones but people forget drones are actually quite loud up close. If it was silent that really does narrow things down. Did anyone else see it with you or were you alone?