REBORN!

Oga Tatsumi is a first year student in Ishiyama High, a notorious school for delinquents. One day he sees a man floating by, and the man suddenly splits in half to reveal a baby boy inside! (Source: Crunchyroll)

Takemichi Hanagaki is a freelancer that's reached the absolute pits of despair in his life. He finds out that the only girlfriend he ever had in his life that he dated in middle school, Hinata Tachibana, had been killed by the ruthless Tokyo Manji Gang. The day after hearing about her death, he's standing on the station platform and ends up being pushed over onto the tracks by a herd of people. He closes his eyes thinking he's about to die, but when he opens his eyes back up, he somehow had gone back in time 12 years. Now that he's back living the best days of his life, Takemichi decides to get revenge on his life by saving his girlfriend and changing himself that he'd been running away from. (Source: Crunchyroll)

Kageyama is an ordinary 8th grader who just wants to live a normal life. Although he can disappear in the crowd in a flash, he was actually the most powerful psychic. The lives of those around Mob and his numerous feelings that softly piles up for the eventual explosion. The mysterious group "Claw" stands before him once again. In the midst of his youthful days, where will his roaring heart take him!? (Source: Crunchyroll)

With a future where Toman has been destroyed by Mikey's twisted ideas and Takemichi returning to the past, he decides to become stronger in order to stop Kisaki's plans. On one side, a mysterious gang from Yokohama known as Tenjiku begins to overthrow all the Toman divisions, deciding to destroy all the gangs in Japan, becoming the most powerful and unique. Kisaki has been planning something for his purposes against Toman, now that he is banned.

Despite his best time-leaping efforts, Takemichi Hanagaki continuously fails to prevent the present-day death of Hinata Tachibana, his adolescent love. The adult Takemichi grapples with grief and the ramifications of the Tokyo Manji gang's criminal empire—an unintended product of his timeline meddling. Though the gang once operated under the idealistic Manjirou "Mikey" Sano, it has now been taken over by the malicious Tetta Kisaki and, as a result, has abandoned its original optimistic intent. Despite feeling hopeless, Takemichi travels to the past once again to investigate Black Dragon, a rival motorcycle gang whose actions ultimately lead to Hinata's demise. There, he meets the young Hakkai Shiba, a fellow gang member whose older brother, Taiju, tyrannically rules Black Dragon.

In Japan, the country that inspired the slogan "Born to be Mild," the blood of young men still runs hot. In the old days they'd go off into the country and hack each other up with swords, but these days, what with school, that isn't very practical. So some of them do something very un-Japanese. They strap on a big bike, roar around annoying people, and pound anyone they consider dishonorable. Now meet Eguchi Yousuke, leader of a high-school Biker gang AND the school's handicrafts club. Which means he divides his time between fistfights and fancy needlework. And if you think he's weird, wait until you meet the rest of his gang... (Source: AniDB)

After a tragic scene with the murder of his friends, Brandon Heat follows his only friend Harry McDowel into Millennion, the largest mafia syndicate. While Harry McDowel is striving for power, Brandon is only staying in Millennion to see the girl he loves whose custody was gained by the leader of Millennion, Big Daddy. But as the years pass and Brandon proves loyal to Millennion, Brandon learns the true purpose and passion of Millennion, and that's when true conflict arises. (Source: Anime News Network)

Giorno Giovanna, a young man living in Naples, has the blood of DIO -- the eternal enemy of the Joestar clan -- running in his veins. Giorno becomes a delinquent due to being persecuted since childhood. However, he's led back onto the right path thanks to a gangster who saved him and taught him to believe in others. Bizarrely enough, this gang of people who didn't forget honor, gratitude, and respect made him reform. This is how Giorno came to admire gangsters. In the backstreets of Italy, Giorno causes trouble alongside his gang "Passione," and ends up being targeted... (Source: Anime News Network)