Ken Usato, an ordinary high schooler, wishes for something fantastical to occur in his unremarkable life. Such an opportunity arrives when he is transported to another world alongside Kazuki Ryuusen and Suzune Inukami, two prodigious members of his school's student council. Arriving in Llinger Kingdom, the three are deemed to be the heroes tasked with stopping the impending invasion by the Demon Lord's army. However, this is a misunderstanding—Usato was summoned by accident and, unlike his two friends, is not one of the heroes. Despite this disheartening revelation, Usato learns that he has an aptitude for the extremely rare healing magic. This catches the attention of Rose, the intimidating captain of the kingdom's Rescue Team, who forcibly takes custody of Usato to mold him into a full-fledged healer. As he undergoes grueling training under Rose's supervision, Usato resolves to become capable enough to protect his friends from the dangers of this world.

Chitose is an 11-year-old girl who is madly in love with an older guy named Hiroshi. He works at the town hall right next to the school and Chitose spends every day relentlessly pursuing him. Can Chitose ever convince Hiroshi to go out with her?

For the average Japanese high school student, walking to school can be a chore, but for first-year Chio Miyamo, it's always an adventure. Constantly running late due to her long night sessions playing video games, she is forced to come up with new routes to make it to Samejima Private Academy on time. On her many bizarre journeys to school, Chio contends with obstacles like street-blocking detours, overzealous kabaddi players, and befuddled motorcycle gang leaders. But these minor hindrances are no match for the special ops training that Chio, AKA the legendary assassin Bloody Butterfly, has received from her extensive gaming obsession. Together with her best friends Manana Nonomura and Yuki Hosokawa, Chio will do whatever it takes to avoid her school's harsh penalties for tardiness.

Juna Ariyoshi is an ordinary Japanese schoolgirl, who possesses a childlike curiosity and a strong admiration toward nature. One day, while on a trip with her boyfriend, Tokio Oshima, Juna dies from a motorcycle accident. However, she is given a chance to live by an individual named Chris Hawken. He offers her powers that make her the avatar of time; in exchange, she must fight to protect the Earth from evil forces called raaja, which are born out of the toxic pollution human beings have caused. She soon discovers that this is no easy task. While trying to master her newfound powers, she must also seek answers to deep questions about the ways science and technology have taken away humans' primal and instinctive connections with nature. With the help of Chris, his assistant Cindy Klein, and a powerful international organization named SEED, it is up to Juna to overcome her fears and find a way to stop the raaja from destroying everyone and everything she cares for.