Haruchika: Haruta to Chika wa Seishun Suru

Haruta and Chika are members of their high school wind instrument club that is on the verge of being shut down. The two are childhood friends, and they spend their days practicing hard while also trying to recruit new members. When a certain incident happens within their school, they work together to solve it.
Joker Game

Lieutenant Colonel Yūki of the Imperial Japanese Army forms the "D Agency," an army intelligence outfit under his command and tutelage. Army General Staff attaches Lieutenant Sakuma to observe the unit's performance. D Agency casts a wide net to find agents beyond Japanese military personnel, and Yūki establishes D Agency's tenets, which go against IJA doctrine: "Don't kill, don't get killed, don't get captured." With this, Yūki trains a team of operatives who conduct missions against domestic and foreign powers.
Bungo Stray Dogs

Nakajima Atsushi was kicked out of his orphanage, and now he has no place to go and no food. While he is standing by a river, on the brink of starvation, he rescues a man whimsically attempting suicide. That man is Dazai Osamu, and he and his partner Kunikida are members of a very special detective agency. They have supernatural powers and deal with cases that are too dangerous for the police or the military. They're tracking down a tiger that has appeared in the area recently, around the time Atsushi came to the area. The tiger seems to have a connection to Atsushi, and by the time the case is solved, it is clear that Atsushi's future will involve much more of Dazai and the rest of the detectives!
Boku Dake Ga Inai Machi

Satoru Fujinuma is a twenty-eight-year-old struggling mangaka with exactly one published work under his belt and a part-time job as a pizza delivery boy. Having been repeatedly told by publishers that his writing "doesn't carry enough of himself in it," he's become disillusioned with both his work and himself, fearing that if he reveals himself through his art, he'll affirm what he fears — that he's actually a hollow person on the inside. In the face of his disheartening failures, he continues living on in mediocrity, with one very notable exception: He has the power, or rather, the responsibility, of traveling back in time in order to avert disasters that happen around him. Appropriately termed "reruns," these instances force Satoru to relive a span of time (usually lasting only minutes, if even that) again and again until he spots the "oddity," the cause of the impending catastrophe. Unwilling though he is to interfere, Satoru consistently and successfully completes each rerun, oftentimes at his own personal detriment.