Natsu and Akira are childhood friends, in the same grade and living in neighboring households. Responsible Natsu always looked out for Akira, helping him with his studies and waking him up every morning for school. Meanwhile, Akira's father, Oru, divorced his wife years ago and now lives a lonely life with no women around, just raising his son. One day, Akira confesses his feelings to Natsu, and the two begin dating. A heartwarming story of pure, innocent love unfolds.