(Re-Asking) What song is this?! Help!!!?

Ok if you don't know what this song is or don't have any hints towards what song it may be, don't answer.

I listened to this song a while back on YouTube and I had it bookmarked on my old laptop but I got a new one so I don't know it anymore. I found it from suggested videos of Vocaloids songs.

Description of the song:

-Japanese

-Parody of another song, only this time the main girl was a dude

-The guy I THINK got some wish and he wished that he could seduce any woman he wanted or something along the lines of that

-He seduced a bunch of women and they were infatuated/in love with him and they were all stuck in his castle

-At the end of the song, some girl comes in and stabs him, he dies, the girls come out of their stupor and leave

Like I said, it's a parody of another song, but the other song is exactly the same except the original song is with a girl seducing these people.

Help!!!!!