Kaoru was suffering from xeroderma pigmentosum (XP), an illness, which also might be described as the allergy to the sun, and was not allowed to be exposed to sunlight. The only motivation in her life was singing, which also was the only connection to the outside world. One day, an incident drastically changes her life...
11-year-old Yusuke and his classmates camp in the woods and see a strange light. They discover a small metallic object like a robot which talks, calls himself Tetra and knows Yusuke's name. Tetra can create wonderful gadgets but actually has to save the world with Yusuke's help from extraterrestrials with bad intentions.
Asuka Kotobuki, a junior college student, is in the middle of her job hunting. She spends all her time visiting companies and taking job exams, but her honesty and truthful personality causes her to keep receiving rejection notices.
One summer day, a group of sixth-grade boys have an argument about whether fireworks are round or flat when viewed from different angles and embark on a journey for the answer during the annual firework festival. Meanwhile, one of their classmates, Nazuna, is troubled by her parents' separation and decides to choose one of the boys to run away with.
Teenage Mutsuko comes to Tokyo for work but ends up at a repair shop. She befriends the owner's family. Neighbors Hiromi, writer Chagawa with admirer Junnosuke strive alongside them in postwar Tokyo's evolution.
Shūichirō Kiriyama works at the Limitation Task Force, the place where the cases which have reached the statute of limitations are destroyed.
Getting bored of his job, he decides to find a hobby, because it seems important to him to have a hobby.
So he decides to puzzle out the unsolved cases on his free time, helped by his coworker Mikazuki, who seems to have a crush on him.
Mecha-Mecha Iketeru! is a popular Japanese variety show, shown on Fuji TV. The hosts of the show are the owarai duo Ninety-Nine, and the show is usually attended by regulars Yoiko, Gokuraku Tombo, Oasiz, Shinji Takeda, Akiko Hinagata, and Sarina Suzuki. However, Gokuraku Tombo's Keiichi Yamamoto has not appeared on the show since being involved in a scandal in 2006. Egashira 2:50 also appears as a semi-regular guest. The show is also known as Mecha-Ike.
