Little Busters! Refrain

When tragedy struck Riki Naoe as a child, he was rescued from grief over his parent's deaths when four other kids "recruited" him for their group—the "Little Busters." Now in high school, Riki and the other Busters are still fast friends, and though their vision of being heroes for justice may have faded, they'd still do anything for each other. Which is why Riki is now on TWO special missions. The not so secret one: recruiting new members so the Busters can form a baseball team. Preferably FEMALE recruits, as the current dude/babe ratio is an inconvenient 4 to 1. The OTHER mission, though... That's the strange one. Because Riki and Rin, the group's singular girl, are receiving odd messages, delivered by cats, concerning the existence of a "secret world" and assigning them tasks they

There's a rumor about a mysterious phenomenon called "puberty syndrome." For example, Sakuta Azusagawa is a high school student who suddenly sees a bunny girl appear in front of him. The girl is actually a girl named Mai Sakurajima, who is Sakuta's upperclassman who is also a famous actress who has gone on hiatus from the entertainment industry. For some reason, the people around Mai cannot see her bunny-girl figure. Sakuta sets out to solve this mystery, and as he spends time with Mai, he learns her secret feelings. Other heroines who have "puberty syndrome" start to appear in front of Sakuta. (Source: Anime News Network)

Even though there are still only five students who attend the remote Asahigaoka Branch School, each one of the girls already has a lifetime of wonderful experiences in the carefree Japanese countryside. Some memories may belong to just one person, like Hotaru’s recollections of her first day in Asahigaoka before she’d had a chance to meet her new friends. Other memories bring an otherwise sleepy town to life for Komari, Natsumi, Renge, or even Suguru. (Source: Sentai Filmworks)

After a falling out with his middle school team, Mihashi enters Nishiura high school with no social skill, a warped opinion of himself, and every intention to quit baseball. The newly formed Nishiura baseball team, however, needs a pitcher, and they welcome him. Most enthusiastic is Abe, a domineering catcher with his own game issues. And so a battery every bit as complementary as it is dysfunctional is formed. If they can figure out how to work together, they might be the answers to each other's problems-and the team might be able to win.

Due to a tragic accident, Banri Tada is struck with amnesia, dissolving the memories of his hometown and past. However, after befriending Mitsuo Yanagisawa, he decides to move on and begin a new life at law school in Tokyo. But just as he is beginning to adjust to his college life, the beautiful Kouko Kaga dramatically barges into Banri's life, and their chance meeting marks the beginning of an unforgettable year. After having a glimpse of college life, Banri learns that he is in a new place and a new world—a place where he can be reborn, to have new friends, fall in love, makes mistakes and grow. And as he begins to discover who he was, the path he has chosen leads him towards a blindingly bright life that he will never want to forget.

It's a new school year and Kasumi, Arisa, Saaya, Tae, and Rimi are thrilled to finally be second-year students. Even more exciting than becoming upperclassmen, however, is the fun they have while performing in their band Poppin' Party… until things get out of control when the girls publicly announce that they're going to do their own concert before they've really studied the issue. Suddenly they're committed to doing something that's a lot more difficult than it seemed, and the pressure is doubled since their musical rivals in Roselia, who've also announced a live concert, are way ahead of them in planning! But you can't stop the music, and with a little hard work and help from other groups and some talented newcomers, Poppin' Party fever will soon be popping up all over!

"One day, we're going to make the strongest battery ever!" Based on the promise to reunite with Hikaru again, Daigo has moved on to Fuurin Academy Middle School. Daigo is the captain for the baseball club, but with all the older students gone, the team is all girls, including Mutsuko. With a group of peculiar newcomers, the new Fuurin Academy baseball club is off to a new start! How strong are these baseball girls?! It's the beginning of the "middle school chapter" of the endlessly passionate baseball tale! (Source: Crunchyroll)

Summary of the first season of the show, as seen from Rikka's perspective with new elements.