アインシュタインが解けなかった問題 (Einstein ga Tokenakatta Mondai)

==Background==
"The Problem Einstein Couldn't Solve " is 40mP's seventh album. It features Miku, Tianyi, and LUMi.
==Preceding albums==
Short Story Album.jpg|Short Story
==Track listing==
==Other media appearances==
===Event===
* Released during Comiket 95 Day 2.
==External links==
===Official===
===Unofficial===
Category:Albums
Category:Albums featuring Hatsune Miku
Category:Albums featuring Luo Tianyi
Category:Albums featuring LUMi
Category:Japanese albums