Winter Anime "Siren" OP is "Kimi no Hana" sung by Hanako Oku!　The first PV using this song is now on view on the official website.

The latest information, including the theme song information, has been released from the TV anime "Siren," which will start in January 2017.

This is the first original TV anime work by Minoisai Takayama, game designer of "Kimikiss" and "Amagami" for PlayStation 2. In this work, for which Mr. Takayama serves as character designer, series composition, and script writer for all episodes, a new love story will unfold in the setting of "Kiaritsu Higashi High School," which is also the stage of "Amagami. Directed by Tomoki Kobayashi, character design by Naoto Hosoda, and animation production by studio Gogumi/AXsiZ.
⇒2017 Winter Anime List

The latest information on the broadcast information, including the date and time, has been released.
The first broadcast will be on January 5, 2017 (Thursday) from 2:28 am on TBS, January 6, 2017 (Friday) from midnight on Sun TV, and January 7, 2017 (Saturday) from 1:30 am on BS-TBS, in the same "omnibus" format as the TV anime "Amagami SS" series, with each heroine's story developing individually. It has been announced that the program will be broadcast in an "omnibus" format, with each heroine having her own storyline.
It was also announced that Atsushi Tamaru will play the main character, Shoichi Kamida, and Ryota Asari will play his best friend, Ikuo Nanasaki. See the next page for more information on the synopsis, character settings, and more.

It was also announced that the opening theme song will be "Kimi no Hana" sung by Hanako Oku. This is the first time since the theme song "Garnet" of the anime movie "Toki wo Kakeru Shoujo (The Girl Who Leapt Through Time)" that Kanako Oku has sung an anime theme song, and it was made possible by the enthusiastic offer of the anime staff.
The first PV using this song is now on view on the official website ( # ), so be sure to check it out and see what kind of song it is.

Here is a comment from Ms. Hanako Oku.

Comment.
When I read the story of "Siren," I was immediately drawn into its world. I wanted to express the initial feelings of love and the excitement of school days in my heart in the song as I wrote it. Each character is very attractive, and I'm looking forward to seeing how it all turns out. I hope "Kimi no Hana" will be played at the opening of the show, and I hope it will be a presence that will heighten the anticipation for the story that is about to begin.