Height
150.00 cm
Age
15
Birthday
March 20
Mayumi is the former hand shaker partner and the older twin sister of Koyori and the current partner of Nagaoka. She is known as 'Silver Cocoon' and together they are known as Team Cocoon. She is also shown to be mute like her twin sister. Mayumi visually has the same appearance as Koyori due to them being twin sisters. She is very cute and has silver eyes and hair. Her skin tone is shown to be very pale. She wears a traditional japanese kimono at all times and has a bundle of flowers sitting on her hair. Like Koyori she is very quiet and normally does what Nagaoka wants to do. Although before, she was very protective over her sister and was normally the one who put the strong front on and protected Koyori although at times she would cry and run for Nagaoka and Makihara's help along with Koyori.
Hand Shakers
Those who receive the Revelation of Babel must overcome many battles and trials. By grasping the hand of their special partner, these "Hand Shakers" transport themselves to the realm of Ziggurat, an alternate dimension where time no longer exists. Each pair of Hand Shakers must battle it out for the right to meet with God, who will reward them by granting them a single wish. Tazuna Takatsuki, a high school student with a penchant for fixing things, is one of these Hand Shakers. After receiving a request for repairs from Professor Makihara of a nearby university, Tazuna stumbles upon Koyori Akutagawa, a bedridden girl that reminds him of his deceased sister Musubu. Remembering her dying wish to never let go of her hand, Tazuna grasps Koyori's hand and awakens his power as a Hand Shaker. However, Koyori's life is directly tied to her status as a Hand Shaker, meaning if Tazuna was to ever let go of her hand she would die. With meeting God being their only hope for saving her, the duo must find a way to make their unique powers mesh together, overcome the opposing Hand Shakers, and make their wish come true.
