Memory Museum at 3:00PM is the title of the eleventh episode of the Magia Record: Puella Magi Madoka Magica Side Story anime.
Later whilst shopping with the magical girls to buy coasters for Nanami Yachiyo, Iroha comes across a Witch. By night time, Azusa Mifuyu heads to the villa to invite Iroha to join the Wings of Magius. The others are also invited to attend a lecture occurring at the Memory Museum.
Once at the museum the next day, the group come across Satomi Touka, the other girl who had appeared in Iroha's dreams.