TV series
For high school students like Shouichi Kamita, university entrance exams and the future are common concerns. It is also during this time in life that a mysterious emotion that vexes people of all ages may begin to weigh upon one's mind—love. At this point in his teenage years, Shouichi finds three girls he could see himself having a future with: the ever-cheerful Hikari Tsuneki, who teases Shouichi without mercy, but actually has a softer side; the competitive gamer, Tooru Miyamae, who has difficulty communicating with others; and Shouichi's childhood friend, Kyouko Touno, the sometimes immature shoujo manga enthusiast. Seiren follows Shouichi's relationships with these three girls across three separate arcs, as their feelings grow from mutual interest and blossom into something more beautiful.
Watch trailerAvailability
Checked Jul 22, 2026
Seiren premiered January 6, 2017. We don't have a confirmed streaming, rental or purchase option yet.
For high school students like Shouichi Kamita, university entrance exams and the future are common concerns. It is also during this time in life that a mysterious emotion that vexes people of all ages may begin to weigh upon one's mind—love. At this point in his teenage years, Shouichi finds three girls he could see himself having a future with: the ever-cheerful Hikari Tsuneki, who teases Shouichi without mercy, but actually has a softer side; the competitive gamer, Tooru Miyamae, who has difficulty communicating with others; and Shouichi's childhood friend, Kyouko Touno, the sometimes immature shoujo manga enthusiast. Seiren follows Shouichi's relationships with these three girls across three separate arcs, as their feelings grow from mutual interest and blossom into something more beautiful.
Cast, crew and production details
Atsushi TamaruShouichi Kamita (voice)
Ayane SakuraHikari Tsuneki (voice)
Juri KimuraKyouko Touno (voice)
Shino ShimojiTooru Miyamae (voice)
Shiori IzawaMiu Hiyama (voice)
Tetsu InadaHiking Club President (voice)
Shiori MikamiMakoto Kamizaki (voice)
Honoka KurokiRuise Sanjou (voice)
BS-TBSJapan
TBSJapan
Pony CanyonJapan
Studio GokumiJapanWatch options above are for the show and may vary by season or episode.
Episode 1
Shoichi is an average guy who has trouble visualizing his future. When he sees how far ahead of him his classmate, Hikari, is in every facet of life, he makes a decision.
Guest stars Shiori Izawa, Tetsu Inada, Honoka Kuroki, Manami Numakura, Ryota Asari, Takuya Eguchi, Yukari Tamura, Saki Fujita
Where to watch Seiren
Episode 2
The girl who climbed in through Shoichi's window wasn't a ghost, but his classmate Hikari. Her appearance at the summer course rejuvenates him.
Guest stars Shiori Izawa, Ryota Asari, Juri Nagatsuma, Mai Kadowaki, Shoya Ishige, Takumi Satoh
Where to watch Seiren
Episode 3
Shoichi and Hikari spend more time together during the summer course and eventually end up in the men's bath together after he incorrectly calls her bluff.
Guest stars Manami Numakura, Ryota Asari, Saki Fujita, Mai Kadowaki, Reo Tatsumori, Sayaka Senbongi, Shin-ichiro Miki, Yurika Kubo
Where to watch Seiren
Episode 4
Hikari continues to ignore Shoichi after their moment at the pool, leading him to suspect he did something wrong.
Guest stars Tetsu Inada, Shiori Mikami, Ryota Asari, Takuya Eguchi, Saki Fujita, Yukiyo Fujii, Shin-ichiro Miki
Where to watch Seiren
Episode 5
Shoichi and his two friends have been playing video games during class and talk about it has been spreading across the school. Eventually, a girl noticed them playing and enjoyed playing with them. She was secretly into video games as well. The four of them later go into town and play some karaoke and arcades.
Guest stars Manami Numakura, Ryota Asari, Takuya Eguchi, Aya Yamamoto, Natsumi Fujiwara
Where to watch Seiren
Episode 6
Two childhood friends duel out there differences over a game of GusGal.
Guest stars Shiori Mikami, Honoka Kuroki, Manami Numakura, Ryota Asari, Takuya Eguchi, Natsumi Fujiwara, Seisuke Uno, Shoya Ishige
Where to watch Seiren
Episode 7
Shouichi was invited to Miyamae's place to play some GusGal, but instead, they talked a lot more and she began to open up to him.
Guest stars Manami Numakura, Saki Fujita, Yukiyo Fujii, Reo Tatsumori
Where to watch Seiren
Episode 8
Previously Miyamae asked Shouichi to come with her to ComiMa, a fashion and gaming convention. Now along with Shiori's custom cosplay outfits and Tomoe, all four of them go and try to sell some of their creations. After a long day, they go to dinner and ran into a classmate that happened to work there.
Guest stars Shiori Izawa, Honoka Kuroki, Manami Numakura, Ryota Asari, Takuya Eguchi, Juri Nagatsuma, Honoka Naito, Rina Endou
Where to watch Seiren
Episode 9
A new arc kicks off, as Shoichi and Kyoko both struggle to come to terms with each other's growing up.
Guest stars Tetsu Inada, Honoka Kuroki, Manami Numakura, Saki Fujita, Yukiyo Fujii, Hanako Oku, Jouji Nakata, Maki Kawase
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Episode 10
Shoichi is spurred on by various events happening around him to ask Kyoko out on a Christmas Eve date.
Guest stars Tetsu Inada, Honoka Kuroki, Manami Numakura, Ryota Asari, Yukari Tamura, Saki Fujita, Yukiyo Fujii, Jouji Nakata
Where to watch Seiren
Episode 11
Shoichi and Kyoko agree to remain friends forever, but Ikuo's stirring display of bravery awakens something within Shoichi.
Guest stars Shiori Izawa, Shiori Mikami, Honoka Kuroki, Manami Numakura, Ryota Asari, Takuya Eguchi, Saki Fujita, Yukiyo Fujii
Where to watch Seiren
Episode 12
Shoichi, having decided to go out in a blaze of glory, lays it all on the line to tell Kyoko how he really feels.
Guest stars Shiori Izawa, Tetsu Inada, Shiori Mikami, Honoka Kuroki, Manami Numakura, Ryota Asari, Takuya Eguchi, Yukari Tamura
Where to watch SeirenEpisode information updated Jul 22, 2026
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