Off shots of the three celebrating their birthdays in June.

Three of the members of MCZ (SHIORI, RENI, and AYAKA) have birthdays in June.

This year, too, a "birthday book" commemorating each of their birthdays will be published with a pre-order system.

The editor-in-chief of HUSTLE PRESS, ASAO Inoue, who is responsible for the publication of the magazine, has released off-shot images of each of the three on his Twitter page in advance.