Oh you got a He-Man shortsword, too. The power of the song is so strong that it can even brainwash other people to drop legendary He-Man equipments. Yo soi He-Man!
I was mistaken, my soulfused Peerless Plate Cuirass did get 5 potencies in the first run alone. I didn't expect that many, I think soulfused is a 2x item world experience multiplier while isekai is a 3x multiplier?
Guess it was worth it to waste my hard drive space and record irrefutable live proof that the He-Man song guarantees Juggernaut. And Capacitor, too. It didn't go Juggernaut 1,2,3,4,5 in the first run again but not bad.
Also, He-Man is not a Homo, dammit!Legendary Sword of He-ManPeerless Armor of He-ManQUOTE(sigo8 @ armored green Yoda)

Auto-sold equips are counted in the credits total.
Personally I've had horrible luck with drops. My one GF run dropped 5 Fishnet Stockings, 5 High Heels and ZERO none nill nadda Latex Gloves. And my IW runs of my L-ticket only dropped 2 Choker and Bowtie, and 1 Underwear
He-Man's Armor got 3 Black Underwear and 1 Choker Bowtie in six runs, and He-Man's Sword got 6 Choker Bowties in seven runs. Both were soulfused, so yeah ten items is a lot better than your three. 10 Bunny Girl drops in 13 runs is still pretty low. I think item world Bunny Girls are 2/3 as common as arena and grindfest Bunny Girls, since there are only two versus three different drops.
Between you, me, and the couple other results here, grindfest seems to average 10 Bunny Girl drops.
Aside from the first day in which I dropped 8 Bunny Girls, almost every day has yielded me 4 Bunny Girls doing all non-SG arenas. Yesterday I only got 3 arena Bunny Girls.