A group of four decides to commit suicide using gigantic fireworks. But every time the fireworks explode, they find themselves back in time before they carried out the plan. They suspect the cause to be the young age of one of the members and try to convince the high school girl to quit.
Shun is a young man, who sells his paintings on a city corner. Kasumi is a children's story writer, living alone in a mountain in Shinsyuu. One day, they happen to meet each other in the city crowd, and they immediately connect. However, they must first deal with Shun's childhood abuse which has left him unstable.
Kazuya (27), an office worker, is what is called a "good listener" who listens to his parents. One day, however, he happens to stop by a café and falls in love at first sight with Reiko (47), who works there, but Reiko is divorced, has a child, and suffers from dementia. Kazuya's selfish feelings lead to encounters and experiences with various people, and he realizes true love.
