According to Wikipedia (and also other sources)...
It's quite difficult to find the exact meaning of a phrase sometimes... here you are the Google translation of episode 26.5 title...
?M?? = De M Note
meaning: "Watch (out) for Extreme Masochist"... it took me some hours to find out it...
Well, a simple conversion from graphics to text will be enough; Google translation is my friend (sometimes) and I will try to find out a proper mean for the phrase, knowing something about the context.
If you would like to help, I will take all the needed screenshots.
Many thanks in advance!