Despite his extreme shyness, Atsuhiro "Akkun" Kagari has won the heart of his dream girl: the sweet and lovable Non Katagiri. However, his embarrassment over affectionate gestures—ranging from giving compliments to sharing a kiss—leads him to act harsh and outright mean toward Katagiri in their daily lives. Yet Akkun remains deeply in love; he expresses his admiration for Katagiri in his own unique way. From following her to take her photo to eavesdropping on her conversations, he essentially ends up stalking his own girlfriend. Fortunately, Katagiri finds Akkun's behavior cute and endearing, knowing he doesn't truly mean any of his insults. Even if their close friend, Masago Matsuo, finds their dynamic a bit strange, Katagiri loves her sweet tyrant exactly as he is.