Kota lost his father in an accident when he was young and had been living with just his mother ever since. Rinka, who raised Kota with love, came to cherish him more than just as a son. Time passed, and Kota graduated from university and found a job. However, his workplace turned out to be in Kansai. In other words, he would soon have to part ways with the Kota he loved so much. One day, Rinka invited Kota on a hot spring trip. She wanted to create a final memory with the Kota who was about to leave the nest…
