The main character, Soji Shirakawa, is 14 years old. He's a bright young boy, though a bit peculiar, and is nicknamed "Shampoo" by his peers. Soji is a descendant of the ancient Mu people and is an esper, but his skills are still in his infancy. One day, he's teased by a bancho on the train, and Soji uses his psychic powers, but...?

(from ebookjapan): There is a gray wagon that appears with an eerie, whistling sound that seems to come from the depths of hell... The history of the gray wagon told in old tales has been passed down to the present day, and once a week on Fridays, it would hunt and collect juvenile delinquents. The delinquents gathered in this way were taken to the "Sea Cage," a juvenile delinquent ship that held 300 delinquents, one-third of whom were tortured and physically punished before their lives were plunged to the bottom of the sea. It was a reformatory on the sea!

A harlot named Asagiri resides in a low class brothel called Yoshiwara, living out her days experiencing neither joy nor sadness. Once her contract ends, she will leave. That is, until she falls in love for the first time with an artisan named Hanjirou. She bides her time at Yoshiwara waiting for him to return, and the two finally reunite, but as prostitute and customer?

from ebookjapan: Nishiyama Mitoshi, 44 years old. He's a toy maker (or he would be, if he ever went to work). Now that he's an adult and a father, he possesses social status, intellect, and libido, but, like a kid, he is unwaveringly self-serving. That's this manga to the letter--full of foul, dirty jokes, business-themed gags, and toilet humor that both the kid and the adult in you can enjoy!