U.A. Beginnings Saga

The Yuuei Heroes Saga is the introductory saga of the series. Izuku Midoriya, a young boy who was born with a Quirk dreams of getting one some day. At the beginning he is bullied by Katsuki Bakugou and gets All Might's Quirk. Izuku gets into Yuuei Academy and meets a lot of other heroes.

The saga talks about how one day a Luminescent Baby was born in Quig Quig, China and had a "individuality". Soon everyone across the world would get what they call a Quirk or a special power. These powers would then let people become heroes or villains.

The arc also happens when Izuku starts Yuuei and has to meet the expectations of the school.

We are introduced to the major villains in the series, Shigaraki Tomura, Black Mist and Noumu. Their goal is to kill All Might so there will be no peace.

The Sports Festival starts and helps the students show off their Quirks and skills. Katsuki Bakugou becomes the Sports Festival Champion defeating Shouto Todoroki.

Story Arcs

 * Entrance Exam Arc: (Manga: July 2014)
 * Quirk Apprehension Test Arc: (Manga: August 2014)
 * Battle Trial Arc: (Manga: September 2014)
 * Ultimate Space & Jams Arc: (Manga: September - December 2014)
 * Sports Festival Arc: (Manga: December 2014 - May 2015)

Trivia

 * The Sports Festival Arc is so far, the longest story arc in the series.