Lento Memento (レント メメント) is Lelele-P's seventh album, the previous being his major debut album LELELEGEND. It was first distributed on summer Comiket 82 and was described as an all "Len love songs" album with all the songs featured in the album love-related.
Several notable tracks of the album include "Ophelia" previously featured in the compilation Caleidoscopio, "I want to be a Lion" previously featured in the "Magical Nuko Len Len reUnion Chronicle tracks" and "Mitabine Fuyu". New songs include "Poraroido", "Aitsu ni yoroshiku", and "Dai baka!".