I have not yet. Was above Stage 3000, checked HH, nothing. Forged, got above Stage 3000 and got all girls above level 3000. Checked HH, nothing. Forged, did it again, nothing. Sent in a report. Waiting for a response. I've only seen the banner for Mizuki once and that was at the start. I've seen the Pussy Saga banner twice, but not the Mizuki since. And yes, I play them both on Nutaku.