「幼馴染みがほしい」と呟いたらよく一緒に遊ぶ女友達の様子が変になったんだが (Associated Names)

During a meal with the usual close-knit group—consisting of four members: ‘Haru’ (Spring), ‘Natsu’ (Summer), ‘Aki’ (Autumn), and ‘Fuyu’ (Winter)—Aki suddenly murmured a single phrase, “I want a childhood friend.” As a result of that utterance, ‘Natsu’, who often hangs out with ‘Aki’, undergoes a complete transformation in her behavior!? From sharing lunch breaks to…