The Yellow Handkerchief(幸福の黄色いハンカチ)

The story starts with Kinya, who has recently upgraded his car. He’s a young adult and he’s single so naturally he uses his ride to ahem, look for companions. He offers a ride to a shy girl by the name of Akemi and she reluctantly accepts. From the get go, sexual tension is apparent, but things get a bit easier as the two become acquainted. They pick up Yusaku, a 30-something coal miner with a reserved personality. The story slowly begins to shift from the comedic hijinks of Kinya and Akemi to Yusaku’s mental drama. He’s hiding something about his past, which he either wants to forget or is trying to remember.