High School Return of a Gangster

Two high school students become entangled in a wildly conflicting emotional relationship that erupts when they discover they are now step-brothers.

This dramatic adventure series tells the story of a group of teenagers who are separated from their families following an invasion of their country, a conflict they never saw coming.

Taking place in the year 1937 on the eve of World War II, the story involves a mysterious spy training organization known as the "D Agency." The organization is established by Lieutenant Colonel Yuuki from the Imperial Japanese Army. His ideals lead him to recruit people beyond military academy graduates and personnel, while training them to become skilled agents in arts of manipulation. These agents would become a specialized team to conduct operations. One such antihero agent, under the name Jirou Gamou, goes on a harrowing mission to uncover secret documents titled "Black Notes," while battling forces from within and without his own ranks.

Ashiya has spent the first seven days of high school stuck in the infirmary because of a youkai attaching itself to him. He ends up asking the owner of a small tea room called the "Mononokean" for help. This is a tale involving the very morose owner of Mononokean guiding the youkai that happened to wander into this world go to the next world.

Takumi Harada is an extremely gifted baseball pitcher. Upon entering junior high school, Takumi moves to a town situated in the mountains due to his father's job transfer. There, he meets a new classmate Go Nagakura, a catcher who is able to get Takumi's most powerful pitches. Takumi and Go both join the school's baseball team where they develop a firm friendship and grow as individuals through their battery.