Gekiha Shijima (VA: Takuma Terashima)
The grandson of Genjuro Shijima, president of the toy manufacturer Kasuga. He is a tall, handsome young man who is otherwise a completely ordinary high school student. Due to a certain event, he becomes the pilot of the combining robot Dandivine.

Akane Kuzumi (VA: Haruka Shiraishi)
Gekiha’s classmate and girlfriend. She fell in love with the handsome Gekiha at first sight and confessed her feelings to him, but she has recently become slightly exasperated with his passive, conflict-avoidant personality.

Kirei Shijima (VA: Saya Aizawa)
Gekiha’s younger sister. She is an incredibly beautiful girl when she keeps her mouth shut, but she possesses quite the sharp tongue. She is often drawn to things that are out of the ordinary. Even her classmates treat her like an eccentric weirdo.

Haru (VA: Nao Toyama)
The eldest of three sisters who came from another dimension. She is a sexy lady with a great figure. Her tone of voice contributes to her gentle and airy vibe. It is completely impossible to read what she is thinking.

Natsu (VA: Aya Yamane)
The second of the three sisters from another dimension. She is a beautiful goth girl who appears to be around the same age as Gekiha and his classmates. She is a downer who finds everything to be a drag, and her tone of voice is always sluggish.

Aki (VA: Misaki Kuno)
The youngest of the three sisters from another dimension. She looks like a grade schooler and resembles a small animal. While her voice and tone might be childish, she is often rude and snarky. Bright and energetic, she is the exact opposite of Natsu. She is a cheeky girl who is noisy and excels at irritating people.

Go Sera (VA: Asuna Tomari)
Gekiha’s best friend. He is small in stature but boasts outstanding athletic ability. He is a hot-blooded guy with a strong sense of justice. Despite his small size, he is the personification of a classic hero. However, he is sometimes so intense that people around him find him annoying.

Yusaku Kuroiwa (VA: Katsuyuki Konishi)
Daigo’s younger brother and the uncle of Gekiha and Kirei. He is the type of man who looks good with a stubble. He was the former pilot of Dandivine 20 years ago, but he currently supervises a construction site. He is a gambling-loving older guy who drinks during the day, but he is reliable when it truly counts.

Daigo Shijima (VA: Ryotaro Okiayu)
Gekiha and Kirei’s father and Sales Manager at Kasuga. He was adopted into the Shijima family as a son-in-law. He is completely incompetent and was given his current important position solely because of his good looks. He is Yusaku’s blood-related brother.

Genjuro Shijima (VA: Atsushi Ono)
Gekiha and Kirei’s grandfather and the president of the toy manufacturer Kasuga. He has a rugged appearance and possesses the overwhelming charisma of a Japanese power broker. Having made a fortune on Dandivine toys in the past, he issues a major command to the company aiming for another massive hit.

Yuga Shinonome (VA: Ruriko Aoki)
The Head of R&D at Kasuga. She was previously a member of the anti-Aposdoll organization Teito Extra-Dimensional Task Force HQ, where she was a colleague of Yusaku. She works her three subordinates to the bone in order to develop the new Dandivine toy.