The protagonist, Nakayuu Riku (played by Jun Matsumoto), is a father of two and works as a novelist. He cares for and empathizes with those around him more than others do. He feels happy when he sees happy people, sad when he sees sad people, and he pays great attention when he sees people troubled, often approaching them to offer greetings. With a heart that wants to help others and hopes for friendly coexistence among those around him, he cannot help but intervene in others' problems. Nakayuu continually solves problems for his neighbors in the same apartment, gradually bringing everyone together to form a community. This is a story that penetrates the inner gaps of modern people's loneliness and gives them the courage to connect with those around them. Lifestyles have changed, and relationships between people have undergone significant changes as well. Increasingly complex modern social issues have arisen, which cannot be easily improved or solved. Nevertheless, inspired by every subtle thing the protagonist says, connections begin to form between previously indifferent people around him, and the world gradually returns to a state of kindness.