True love endures even through emotional ups and downs. Tsumiki Miniwa nurtures a deep fondness for her companion, Io Otonashi, despite her fluctuating emotions. Their close relationship draws admiration from their peers, who see Io's attentive and friendly nature towards Tsumiki. However, Io seems oblivious to their mutual friends' teasing and suggestions of romantic interests. Confessing her feelings to Io is a daunting challenge for the gentle Tsumiki. While they navigate the daily routines of school life side by side, will Tsumiki finally gather the courage to share her authentic emotions?