The world's greatest exposition of the pirates, by the pirates, for the pirates—the Pirates Festival. Luffy and the rest of the Straw Hat Crew receive an invitation from its host Buena Festa who is known as the Master of Festivities. They arrive to find a venue packed with glamorous pavilions and many pirates including the ones from the Worst Generation. The place is electric. (Source: ANN)

Far from the hustle and bustle of urban life, and with only a single candy store and bus route to its name, the rural Asahigaoka is certainly not a place for everyone. Nevertheless, the village's children still manage to cheerfully spend their days exploring and having fun in the wilderness around them. One such child, Renge Miyauchi, the youngest of the group, looks forward to the entrance ceremony of the upcoming school year, signalling her entry into first grade and the beginning of her elementary school life. Attending the only school in town, Renge and her friends, seventh grader Natsumi Koshigaya and her eighth grade sister Komari, make the most out of their rural lifestyle, playing and studying everyday. Meanwhile, fifth grader Hotaru Ichijou has just moved to Asahigaoka from Tokyo, unaware of the numerous adventures and memories that await her. [Written by MAL Rewrite]

At Fujisaki Girls Academy, student council president Natsuo Maki is the epitome of grace and perfection, admired by all the young girls who attend the school. One day, Riko Kurahashi walks into the student council room on an errand, only to discover Natsuo practicing her kissing techniques on a pillow, an act that is neither graceful nor elegant. Riko soon discovers that Natsuo desires more romance in her life, leading her to practice "romantic situations" in secret. Sympathizing with her, Riko agrees to help Natsuo with her love research. Named "Love Lab," the project practices the essentials of love and romance, such as bumping into each other "accidentally" and holding hands. Soon, the entire student council joins in on the fun in the Love Lab too! Through their research and real life encounters, what will they learn about romance? Weaving together funny characters and comedic situations, Love Lab builds a story of friendship and romance, while never missing a beat with the laughter. [Written by MAL Rewrite]

OVA bundled with the 14th manga volume. Story about a joint practice session between Izuku's class and Isami High students at Yuuei Academy, takes place after the field training arc in the second season.