The song is the theme song for the Japanese live-action TV series & film “Teasing Master Takagi-san” (Japanese title:「からかい上手の高木さん」) that is adapted from the popular manga under the same title.
The TV series started airing on Netflix from March 26, and will be broadcasting on Japanese TV on April 2. After the TV broadcast of episode 1 Aimer’s ‘haruka’ will be out for download & streaming.
The song “haruka” is written and composed by Yusuke Tanaka, who has produced songs for artists such as Aimyon and Ikimonokari, and the song was produced by Kenji Tamai.
The story of “Teasing Master Takagi-san” is based on a popular manga written and illustrated by Sōichirō Yamamoto. The story depicts the daily life of the two main characters teasing each other and falling in love with each other.
The manga series has been a huge hit, selling more than 12 million copies. For the live-action adaption, the film is set a decade after the events of the TV series, which is based on the manga, stars Mei Nagano and Fumiya Takahashi as the two main characters. The film will be in theaters on May 31 in Japan. Below are the trailers featuring the theme song “haruka.”
Source: Press Release
