Seirei Academy is a distinguished institution that draws Japan"s top students. Alisa Mikhailovna "Alya" Kujou, the half‑Russian, half‑Japanese treasurer of the student council, is celebrated for her sharp mind, striking appearance and disciplined demeanor. In contrast to her flawless image, Alya"s indifferent classmate Masachika Kuze idles in class and seems to pay her no mind.
At first annoyed, Alya slowly finds herself drawn to Masachika and begins voicing her fondness for him in Russian. Unaware, he secretly speaks the language fluently—he has been learning it to reconnect with a childhood friend who was staying in Japan temporarily.
As their days together grow, the quirky and spirited bond between them deepens swiftly. Meanwhile, both must confront and manage their emerging emotions for one another. Their interactions, initially lighthearted, soon evolve into moments of genuine connection that challenge both to confront their own expectations and desires.