Tokidoki Bosotto Russiago de Dereru Tonari no Alya-san

時々ボソッとロシア語でデレる隣のアーリャさん

Alya is a transfer student enjoying popularity at her new high school, often sporting a cold shoulder while earning high marks in class. She ignores her nerdy classmate, Kuze Masachika, except for when she blurts out a flirtatious line to him in Russian. Little does she know, Kuze understands Russian, though he pretends not to. Let’s see where this wacky love story takes them!

(Source: Crunchyroll)