Kirigaya Touko is a second-year student at Tsukinomori Girls' Academy, and the guitarist of Morfonica. She handles the band's costumes and like Lisa, follows gyaru fashion. Outside of the band she is friends with Sayo and Kaoru. She is also classmates with both Mashiro and Rui, and is also the class president. Touko is a girl of above average height (164 cm/5'5") who has long, wavy blonde hair and light-brown angular eyes. Her bangs part to her left and stop just at the eye. Her casual attire consists of a light-blue jacket with a salmon colored hoodie underneath, along with a black shirt with the word "BLACK" going down vertically 3 times. She also wears short, dark blue shorts, along with white, red, black, and green sneakers. Her outfit is adorned with a necklace with a gold pendant, along with a thin, braided brown belt. Touko is a popular girl who gathers people around her both at school and on social media, where she goes by the name TOKO and is known as a popular influencer who's able to find and create the latest trends. She is a cheerful and open-hearted girl, but those around her are often caught up by her tendency to play things by ear. She often talks in gyaru slang, especially using the words "yabai", "maji" and "mikuron" (no biggie), and wants to take selfies no matter where she goes (even during performances). She loves to tease Tsukushi, which at times leads them to arguing. She is quite confident in herself and the ideas she comes up with, and has sworn that one day she'll become so popular they'll erect a bronze statue of her in Tsukinomori's courtyard. She sometimes argues with Rui as well due to their clashing and contrasting personalities. This is especially shown in the An Étude to Spread Our Wings event, in which Touko and Rui have an argument due to Rui refusing to give Touko the highlight part in their new song due to her lackluster talent in guitar. This pushes Touko to become more determined and practice more often, causing her to seek out Sayo, Kaoru and Tae to teach her how to play the guitar properly, wanting to be acknowledged by Rui.