Ep. 1: Tazuna meets a girl in a locked lab and must battle in the Ziggurat
Aired on January 11, 2017

Tazuna is a young boy who loves to fix things. His life changes when he meets a girl lying on a hospital bed in an electronically locked lab. Upon taking her hand, he discovers he can never let go, or she will die. He must also battle a man and his partner in an event called the Ziggurat, despite lacking a power of his own. The story explores whether he can unlock the might of the Hand Shakers to survive these challenges and save the girl.
Episodes
- Ep. 1 · Tazuna meets a girl in a locked lab and must battle in the Ziggurat
- Ep. 2 · Tazuna must keep holding Koyori's hand to save her life while navigating domestic challenges.
- Ep. 3 · Tazuna dines with Chizuru and Hayate, who reveal their true identities as Hand Shakers.
- Ep. 4 · Chizuru and Hayate help Tazuna and Koyori adopt the name Single Gear after the Ziggurat battle.
- Ep. 5 · Koyori meets President Lily and Masaru after losing contact with Tazuna