- "I matched our numbers to the number of tanks you had. Because that's Sensha-dō! This isn't war. The tanks would be sad if we forgot that."
Kay is a student from Saunders Girls High School. She is the overall commander of her school's Sensha-dō team and she operates a U.S. M4 Sherman.
Kay is a girl with long blonde hair and a pair of light blue eyes.
Kay is well known for her playful and slightly abrasive personality, often appearing boastful and rude, though it is obvious that she is really friendly and well-intentioned. Unlike her teammates, especially Alisa, she has a strong sense of fair play and sportsmanship, and refused to field all of her tanks in a counterattack during the match with Ooarai after she discovered Alisa's treachery. This decision ultimately lost Saunders the match, but Kay didn't seem disappointed or upset in the slightest when defeated, showing that while she obviously loves Panzerfahren, she doesn't take it or herself quite as seriously as some of the other commanders. She plays for fun, not necessarily to win at all costs.
Kay leads the Saunders Sensha-dō team against Ooarai Girls High School during the first round of the Sensha-Dō competition. Her strategy was to hide their flag tank, but unfortunately it was found by Ooarai's Duck Team who lured it into an ambush. The ambush then turned into a hot pursuit when Ooarai's tanks chased Saunders' flag tank, while Saunders' Shermans intervened and tried to hit Ooarai's tanks. In the end, Ooarai's Anglerfish Team managed to hit the Saunders' flag tank by firing from high ground just before being taken out by Naomi's Sherman Firefly.
- It is possible that Kay is named after tank ace Douglas Kay, a British tanker who commanded the Sherman Firefly during the invasion of Normandy.
- Her favorite flower is Lupin and her favorite tank is the U.S. M4 Sherman.
- Kay's hobby is throwing parties.
- She comes from Nagasaki, which could be a subtle reference to the nuclear bombing of Nagasaki: The bomb was dropped by the United States, which is the theme of her character.
- Kay is a big eater like Hana, She can swallow a half of Hamburger with just one bite.
- Moreover, her hometown Sasebo is famous for it's Sasebo Hamburger.
- Her favourite food is Chicken Steak with Gravy and Fast Food.
- According to Alisa her bra size is 85D (Jap/EU size) or 38C on US size.
- Kay has a younger brother and a younger sister.
- Kay's birthday is the January 17th, the same date in 1944 as the beginning of the Battle of Monte Cassino.
|Ooarai Girls High School||Anglerfish Team||Miho Nishizumi ♦ Saori Takebe ♦ Hana Isuzu ♦ Yukari Akiyama ♦ Mako Reizei|
|Duck Team||Noriko Isobe ♦ Taeko Kondou ♦ Shinobu Kawanishi ♦ Akebi Sasaki|
|Hippo Team||Erwin ♦ Caesar ♦ Saemonza ♦ Oryou|
|Rabbit Team||Azusa Sawa ♦ Aya Oono ♦ Ayumi Yamagou ♦ Yuuki Utsugi ♦ Karina Sakaguchi ♦ Saki Maruyama|
|Turtle Team||Anzu Kadotani ♦ Momo Kawashima ♦ Yuzu Koyama|
|Mallard Team||Midoriko Sono ♦ Moyoko Gotou ♦ Nozomi Konparu|
|Leopon Team||Satoko Nakajima ♦ Hoshino ♦ Suzuki ♦ Tsuchiya|
|Anteater Team||Nekota ♦ Momoga ♦ Piyotan|
|Miscellanous||Taiga Ou ♦ Sadoka ♦ Mazoe|
|St. Gloriana Girls High School||Darjeeling ♦ Orange Pekoe ♦ Assam ♦ Rosehip ♦ Rukuriri ♦ Nilgiri|
|Saunders Girls High School||Kay ♦ Alisa ♦ Naomi ♦ Helmet-Chan|
|Anzio Girls High School||Anchovy ♦ Carpaccio ♦ Pepperoni ♦ Siko|
|Pravda Girls High School||Katyusha ♦ Nonna ♦ Klara ♦ Nina ♦ Alina|
|Kuromorimine Girls High School||Maho Nishizumi ♦ Erika Itsumi ♦ Koume Akaboshi ♦ Ritaiko ♦ Geshiko ♦ Sangou ♦ Mauko ♦ Sheska|
|Chi-Ha-Tan Academy||Kinuyo Nishi ♦ Fukuda ♦ Haru Tamada ♦ Hosomi ♦ Nagura ♦ Hamada ♦ Teramoto ♦ Ikeda|
|Jatkosota High School||Mika ♦ Aki ♦ Mikko|
|Tatenashi Girls High School||Shizuka Tsuruki ♦ Rin Matsukaze ♦ Haruka Endou|
|Bonple High School||Jajka ♦ Uszka|
|BC Freedom High School||Asparagus ♦ Moules ♦ Bordeaux|
|Maginot Girls Academy||Éclair ♦ Fondue ♦ Galette ♦ Madeleine ♦ Colombier|
|Bellwall Academy||Tiger I Crew||Emi Nakasuga ♦ Hitomi Yuzumoto ♦ Kita ♦ Takami ♦ Nagisa Shiratori|
|Jagdpanther Crew||Neko Yamamori ♦ Yano ♦ Koharu Sakai ♦ Kanbara ♦ Hirono|
|Elefant Crew||Chifuyu Doi ♦ Terauchi ♦ Wakasugi ♦ Kunihiro ♦ Nogata ♦ Enami|
|T-44 Crew||Minami Youko|
|Panzer II Crew||Kashiwaba Sisters|
|West Kureouji Grona Academy||Kiri Shiratori|
|Selection University||Alice Shimada ♦ Azumi ♦ Megumi ♦ Rumi|
|Japan Sensha-dō Federation||Ami Chōno ♦ Shiho Nishizumi ♦ Renta Tsuji ♦ Chiyo Shimada ♦ Shichiro Kodama ♦ Kikuyo Idegami ♦ Kanon Sasagawa ♦ Hibiki Inatomi ♦ Remi Takashima|
|Non-Affiliated||Yoshiko Akiyama ♦ Jungorou Akiyama ♦ Hisako Reizei ♦ Shinzaburo ♦ Yuri Isuzu ♦ Yusa Chihiro ♦ Boko|