CSBT Chapter 6
The Kid with the Creepy Freckles Incident (そばかすの不気味少年事件 Sobakasu no Bukimi Shōnen Jiken) is the sixth and final chapter of Cool Shock B.T..
One day, Koichi's family is about to go out. Incidentally, B.T. discovers Koichi's well-trained dog. Just as it exits the garage, the family's car bumps into something and the family sees that they've hurt a freckled boy. The boy is fine but Koichi's parents feel guilty and invite him inside their home, hoping to not let the police know about the incident. The boy quickly overstays his welcome, eating directly in the fridge and "borrowing" Koichi's clothes but Koichi's family do not know what they ought to do.
The next day, the freckled boy takes a liking to Koichi's dog and tries to make a bet. B.T. accepts on Koichi's behalf and the two boy each place a candy near an anthill to see whichever candy the ants will go to first. Amazingly, the freckled boy's candy is picked by the ant and he wins the dog. It is explained that last night, the boy has placed insect repellent near the anthill and made it so B.T. would put his candy here. Next, the boy's family comes but instead of picking up the boy, they pressure Koichi's family into letting them stay. The boy eventually privately gloats to Koichi and B.T. that his family has already intimidated the father into servitude and is planning to ruin him. B.T. decides to save Koichi's family.
This evening, B.T. serves a plate of sashimi to the boy's family, only to reveal that it was blowfish sashimi. The whole family except the boy collapses, angering him and pushing him to pursue B.T.. After the family is taken by an ambulance, the freckled boy sees the dog and foolishly follows him. The freckled boy eventually sees B.T. and throws a knife at him, but he's then bumped by a truck. Thus, the whole family of intruders has been pushed out of Koichi's home. B.T. reveals that he hasn't fed blowfish to them, but instead slipped cyanamide in it. The cyanamide prevents the digestion of alcohol, causing stomach pains and explaining why everyone save the boy have been affected. The series ends here.