Kusuo Saiki is a high school student who possesses a wide range of psychic abilities. While many may believe these abilities to be a gift, to Kusuo, they are a curse as he must fight strange odds in order to try to live a normal life. Forced to use his psychic powers to protect his secret or to make up for his father's incompetence at work, will Saiki eventually come to realize how his powers can actually help his friends and family?

Four years into the future, the world has lost its balance... 10 thousand metres of vast woodland is gone, preventing humans to live and leaving a desert to spread endlessly. And so, they head into the world of Meshichi, to live together with the Anbots. As if guided by fate, Sanzou and Gokyuu meet. Traveling together, Sanzou - a young man shrouded in mystery, Gokyuu - the strongest and worst Anbot around, Tongoh - an Anbot fond of drinking, Jou - someone who is great with machines, Suuji - a female Anbot thief, and last but not least, Mioto. And so, their journey begins to the boundless East, to the land where the sun was born! (Source: AnimeNfo)

It is the beginning of the industrial revolution, and feudal Japan is in turmoil. The ruling Shogun are wielding their abusive powers to instill fear and dominance over their oppressed subjects. Beatings, imprisonment, rape and even murder are the adopted tactics chosen to maintain their reign. The bloodshed must end. A group of Samurai have banded together, and, with the development of new weapons and new technology, they have both the will and the hardware to stand up and fight. Ichimatsu is one of these fighters. By day, he works incognito at a local tavern, in the evenings he frequents the brothels, and by the dark of night, he doles out some big-time, gun-barrel justice. He is here to help. He is Samurai Gun. (Source: ANN)

The ground shakes, a rumble follows, and before anyone in Japan can prepare themselves, a cataclysmic volcanic eruption engulfs the country in molten lava and suffocating ashes. Of course, high school student Kusou Saiki repeatedly uses his psychic powers to prevent this harrowing catastrophe. But between restoring the planet and watching his friends discuss their aspirations, Saiki finally resolves to stop the eruption and allow the world to continue spinning. However, this straightforward task is challenging even for the most powerful of psychics, let alone one who must deal with the usual shenanigans his ludicrous friends present.