Led by Yamato, Naruto Uzumaki, Sakura Haruno, and Sai are assigned to capture Mukade, a rogue ninja who is pursuing the ancient chakra Ryuumyaku located underneath the Rouran ruins. While the Ryuumyaku has been sealed by the Fourth Hokage, the group fails to prevent Mukade from releasing its power. Consequently, a strong energy burst engulfs both Naruto and Yamato before they can escape.

As he awakens in a magnificent yet hostile kingdom, Naruto meets its young queen Saara and three Konohagakure ninjas on a top-secret mission. They reveal to him that he has time-traveled to Rouran 20 years into the past! To make matters worse, Mukade has already infiltrated the royal court, becoming the naive queen's most trusted minister under the alias Anrokuzan.

Joining forces with the three ninjas, Naruto must protect Saara's life without fail to stop the villain's plans and return to the present.

[Written by MAL Rewrite]

Fourth season of Quanzhi Fashi.

As another school year begins drawing to a close, the third-year high school students move steadily toward the next milestone of their lives: graduation. Among them are Mio Natsume, a girl burdened with lingering feelings; Hazuki Morikawa, a member of the concert band but distant from the others; and Haruto Souma, an athlete obsessed with baseball. Meanwhile, second-year student Ena Komiya seeks to revive the photography club to its former glory, refusing to let the organization be disbanded. Though this group lacks a strong connection with one another, their lives suddenly cross paths with the arrival of a third-year transfer student. While a transfer so close to graduation is unusual for most, it is business as usual for Eita Izumi. Due to his father's work, he has never been able to stay in one place for very long. But as luck would have it, their most recent relocation has returned Eita to his hometown for his final semester of high school. For better or worse, it also sparks the rekindling of old relationships left behind in the past. With graduation already causing its own share of anxieties, Eita's sudden arrival brings these students' carefree days to an abrupt end. Long-forgotten memories, deeply buried emotions, and inspiring new passions—everything is brought to light in their bittersweet final semester. [Written by MAL Rewrite]

Following the line of the precedent OVAs (of the same name) This anime goes around the normal lives of some elementary school (5th grade, 2nd class room) kids and their adventures, while turning to teens. Their games, stupid jokes, and the misunderstandings around their premature attraction to the opposite sex. Ryota Satou is the main character here, but his friends are almost as important as him since the school wouldn't be the same without them, especially the girls who the majority of time appear to be mature by their ages but in the ends they are as childish and even more "dangerous" than the boys. (Source: ANN, edited)