Bye Bye Memory-Kun

Bye Bye Memory-Kun is one of Lala's inventions.

This invention is a device which Lala uses in order to seemingly lose memories that people retain about anything regarding to the user. This invention looks to be a pink-coloured device which has Deviluke's symbol and two ornaments of wings on both sides of this invention. It seems to be turned on when the switch is pressed above Deviluke's symbol of this invention.

Appearance
It appears in the chapter 48 of To Love-Ru, when Lala uses it for deleting the any memories of the peple on the Earth, and it ends up in a failing plan. Although this device is turned on, Rito, Haruna and some characters don't get affected by it, but Zastin gets affected and he temporaily forgets his own name.

In anime, it debuts and only appears in the episode 26 of the first season, Lala uses it in an attempt to forget any memories of people about her. But as in manga, Rito and Haruna don't get completely affected but the faculty of Sainan Highschool seems to recognise her as a transfer. Fortunately, this plan fails and everyone joins together with Lala in the classroom, and it is the last invention that appear in the first season.