FoliFF said:
*Sight* Sometimes abbreviations is a bitch...
You just ahve to be more hardcore (or socially withdrawn) like me or perhaps others here to recall all this.

It's "ToLove-Ru: Darkness" to be exact. (If you're curious, it's supposed to be a pun on the english word "trouble". Romaji would have it as "toraburu" for either term, give or take. If you know the series, you can sorta see how it applies, especially if you know the ending of the original manga. It has the title drop.)