Seiseki High School (Japanese: 聖蹟高校 Seiseki Kōkō) is a fictional high school whose football team is featured in, and the focus of, the Days series. Seiseki is located in Tokyo and considered strong along with Sakuragi High, Tennouzo, and Touin Academy as they are top team in Tokyo Prefecture.
Seiseki's home kit consists of black jerseys, black shorts, and black socks. The away kit consists of yellow jerseys, black shorts, and yellow socks. In the anime, the brand of Seiseki's kits is implied to be Mizuno, but this is unclear in the manga.
Notable Players Edit
|Susumu Inohara||Jirou Haibara||Yuuta Usui|
|1 / Goalkeeper / 3rd year||2 / Defender / 3rd year||3 / Defender / 3rd year|
|Mitsuru Kokubo||Hideki Sato||Eita Suzuki|
|4 / Defender / 3rd year||5 / Midfielder / 2nd year||6 / Midfielder / 2nd year|
|Hisahito Mizuki||Takanobu Hayase||Jin Kazama|
|7 / Forward / 3rd year||8 / Midfielder / 3rd year||9 / Forward / 1st year|
|Atsushi Kimishita||Kiichi Ooshiba||Shou Nakijin|
|10 / Midfielder / 2nd year||11 / Forward / 2nd year||12 / Goalkeeper / 1st year|
|Testuya Nitobe||Hiroyuki Kurusu||Naoki Shiratori|
|14 / Defender / 1st year||15 / Midfielder / 1st year||16 / Forward / 1st year|
|17 / Forward / 1st year|
|Katsutoshi Nakazawa||Chikako Ubukata|
|Coach||Manager / 1st year|
Seiseki tends to start games with a 4-3-3 formation focusing on the Three Arrows - left-winger Mizuki, center-forward Ooshiba, and right-winger Kazama - with Kimishita as playmaker. Many of their attacks down the right flank begin with right-back Haibara, who has a tendency to charge forward and overlap with his right-winger.
Generally, free-kicks and corners are taken by Kimishita, a set-piece specialist.
Summer Training Camp Edit
- Seiseki High School vs Bousou Academy [Chiba] (3-2)
- Seiseki High School vs Genbu High School [Aichi] (??)
- Seiseki High School vs Ryuushin High [Tochigi] (4-1)
- Seiseki HIgh School vs Seikan High [Aomori] (4-3)
Interhigh - Tokyo Preliminaries Edit
- Seiseki High School vs Tateyama High School (1-0)
- Seiseki High School vs Unknown School (7-0)
- Seiseki High School vs Ariake High School (1-0)
National Championship - Tokyo Preliminaries Block A Edit
- Seiseki HIgh School vs Mejirodai High School (8-0) 
- Seiseki High School vs Hakuto High School (5-0) 
For the Tokyo Preliminaries, Seiseki was registered in Block A. Like Interhigh, there are two representative from Tokyo Prefecture which is divided into Block A and Block B. Seiseki and Touin Academy are placed as seeded in Block A so they only played 4 matches. After winning all matches and defeated Touin Academy in the Final, they became Tokyo A representative for the National Championship.
National Championship Edit
- Seiseki High School vs Otowa Gakuin High School [Shizuoka]
For the National Championship, Seiseki was registered as team 10. They were in the same pool with strong opponents like Ryouzan High School (Interhigh Champion), Otowa Academy High School (Runner up Interhigh) and Municipal Sakuragi High School (Tokyo B representative) which defeated Seiseki on Interhigh Preliminaries.