Main characters

Mari Hayase (早瀬 真理, Hayase Mari, usually written マリ)

Voiced by: Aki Toyosaki

A second-year 10th grade student. Daughter of a great pâtissier and a brilliant scientist. While relatively skilled at cooking and tasting, her academic performance is somewhat random (for instance, when a science test question concerning reflection asked how her reflection in a mirror would look, she responded "it looks cute"). Subtle hints she has feelings for Shun. She first slipped into the past by accidentally touching a book she stumbled upon in Shun's room who was passed to him by her father. She was captured by Mikage and forced to slip back to the past to find Eiji after finding out about the machine. She is saved by her father in the midst of a time paradox, but managed to return safely to the future after Shun saved them. She became a scientist in the future, discovering the time machine, following the footsteps of her father.

Waka Mizuki (水城 和花, Mizuki Waka, usually written ワカ)

Voiced by: Minako Kotobuki

Mari's second-year classmate and best friend and Shun's younger sister. She has a crush on fellow classmate, Futa. She is the first person to witness Mari slipping back in time and informed Shun about it. Waka accidentally slipped back to the past along with Mari and was unable to return and panicked while she was alone in the past- different from how Mari reacted when she first slipped back to the past.

Shun Mizuki (水城 旬, Mizuki Shun)

Voiced by: Ryuichi Kijima

A third-year 12th grade Waka's older brother who plans to become a doctor. Eiji passed a book to him and Mari stumbled upon it, allowing her first time slip to happen. He found out in the future, along with Mari, he would become a scientist who discovers the time machine.

Eiji Hayase (早瀬 永司, Hayase Eiji)

Voiced by: Toshiyuki Morikawa

Akira's husband. Mari and Rika's father. A passionate scientific researcher, he tends to become excessively engrossed in his studies and expeditions; the day after his wedding he disappeared for half a year without any contact, and hasn't seen or contacted his wife or daughters in three years. Found him to be in most of the past traveled when Mari slipped back. He discovers in one journey to the past Mari was captured by Mikage, and tried to save his daughter only to have a time paradox occur in the midst of it.

Futa Ichikawa (市川 風太, Ichikawa Fuuta)

Voiced by: Daiki Yamashita

A member of the soccer team and a classmate of Mari and Waka. Despite being oblivious, Waka has a crush on him.

Jō Mikage (御影 丞, Mikage Jō)

Voiced by: Tomohiro Tsuboi

The main antagonist of the series. A cold-hearted businessman who is interested in the time machine, the "matter transporter", which was stored in the laboratory. He captured Mari, her mother, and the Mizuki siblings inside the lab after discovering the machine in the basement. He forced Mari to return to the past with him in order to locate Eiji, only resulting in himself being trapped in the past due to the occurrence of a time paradox in the final episode.

Scientists

William Gilbert (ウィリアム・ギルバート)

Voiced by: Tōru Ōkawa

Benjamin Franklin (ベンジャミン・フランクリン)

Voiced by: Shinichiro Miki

Alessandro Giuseppe Antonio Anastasio Volta (アレッサンドロ・ジュゼッペ・アントニオ・アナスタージオ・ヴォルタ, usually written, アレキサンドロ・ボルタ)

Voiced by: Daiki Nakamura

Michael Faraday (マイケル・ファラデー)

Voiced by: Showtaro Morikubo

Samuel Finley Breese Morse (サミュエル・フィンリー・ブリース・モールス, usually written, サミュエル モールス)

Voiced by: Kōji Yusa

Alexander Graham Bell (アレクサンダー・グラハム・ベル, usually written, グラハム・ベル)

Voiced by: Tomoaki Maeno

Heinrich Rudolf Hertz (ハインリヒ・ルドルフ・ヘルツ, usually written, ハインリッヒ・ヘルツ)

Voiced by: Akira Ishida

Thomas Alva Edison (トーマス・アルバ・エジソン, usually written, トマス・エジソン)

Voiced by: Wataru Hatano

Other characters

Akira Hayase (早瀬 晶, Hayase Akira)

Voiced by: Haruka Tomatsu

Eiji's wife and mother of Mari and Rika. She's a professional patissier.

Rika Hayase (早瀬 理香, Hayase Rika, usually written リカ)

Voiced by: Yui Fukuo

Mari's younger sister.

Rei Mizuki (水城 麗, Mizuki Rei)

Voiced by: Kikuko Inoue

Shun and Waka's mother.

Satsuki Kuroki (黒木 さつき, Kuroki Satsuki)

Voiced by: Ayahi Takagaki

Mikage's assistant.

Anime

A 12 episode^[3] anime television series aired between July 9, 2016 and September 24, 2016 on TV Tokyo. Funimation have licensed the anime for streaming.^[4] The series' opening theme is "Kibō Traveler" (希望TRAVELER, "Hope Traveler") by AŌP while the ending theme is "Miss Rabbit" (ミス・ラビット, Misu Rabitto) by Erabareshi.^[5]