Two anime adaptations of Kimi ni Todoke were aired in Japan, produced by Production I.G. The second season of the anime was announced in Betsuma Magazine, began airing in Japan on January 4, 2011 and lasted for 12 episodes. A live action film adaptation was released in 2010 starring Mikako Tabe and Haruma Miura.
The first season of the Kimi ni Todoke anime adaptation aired between October 2009 and March 2010. A second season was announced in the November 2010 issue of Betsuma magazine. The second season aired in Japan on NTV on January 2011. Both seasons of the anime are produced by Production I.G. and directed by Hiro Kaburagi. The music is done by S.E.N.S. Project, with the opening sung by Tomofumi Tanizawa and the ending by Chara. NIS America announced at Anime Expo 2011 that they have licensed the first season of Kimi ni Todoke. They released the first season on DVD/Blu-ray on January 10, 2012, and released the second season later that year.
The February 2010 issue of Bessatsu Margaret (released in January 2010), announced that a live-action film adaptation of the series had been approved. Mikako Tabe and Haruma Miura starred in the film, released in Japanese theatres on September 25, 2010 and directed by Naoto Kumazawa. The Live-action movie was released on Blu-ray and DVD on March 11, 2011.
- Yoshiyuki “Zen” Arai
- Voiced by: Takuma Suzuki
- The original home room teacher of Sawako’s class. He and Pin have the same surname, but are not related. To distinguish between the two teachers Yoshiyuki Arai is nicknamed “Zen”, which is an alternate reading of the kanji for “Yoshi”. He seems to be afraid of Sawako and the rumors surrounding her as “Sadako”. Early in the series, he falls ill and has to take a leave of absence from school; because of that, students often believe that Sawako has cursed him. Arai is newly-wed and eventually retires from teaching in order to help his wife’s family business (a sake brewery), resulting in Pin taking over his class permanently.
- Voiced by: Kanae Oki
- The only link to Sawako’s past, Shino was her elementary school classmate and the only person who Sawako talks to as the series begins. During elementary school, by mistake, Shino called Sawako “Sadako.” When they attended the same middle school, the boys in their class, afraid by Sawako’s appearance, heard rumors that she was known as “Sadako,” and since then it became her nickname. It is because of this, that Shino feels guilty about the rumors circulating over Sawako that started from her calling her “Sadako.” Thus she cares about Sawako and whether she is fitting into high school. Shino is in a different class and regrets that she doesn’t get to see Sawako very much. She is a cipher, appearing only occasionally as a catalyst for Sawako’s interactions with other people. Perhaps for story reasons, Sawako is too modest to consider her as a friend.
- According to Shiina, Shino was an unnamed character in the manga, but was named by the staff for the anime. Shiina also wrote that “Shino-chan in the anime is really cute.”
- Chigusa Takahashi
- Voiced by: Yurin
- A classmate of Sawako, Takahashi sits behind Sawako after the seating arrangements change for the third term of first year. She enjoys teasing Sawako and Ayane remarks that Takahashi is eccentric.
- According to Shiina, she was just Takahashi-san in the manga, but has the given name Chigusa in the anime show and from volume 10 onwards.
- A classmate of Sawako who sits next to her after the seating arrangements change during the third term of first year. He often consults her on supposedly spiritual or occult concerns.
- Mogi is a new character introduced in the recent chapters of the manga. He is a boy from Class 2-B. In Chapter 54, he asks Ayane to date him, to which she immediately agrees. Ayane breaks up with him in Chapter 59.