Kanon (2006)

Urara Shiraishi is a model student with excellent grades. Ryu Yamada is a trouble student. One day, Urara tumbles down the stairs with Ryu. After the accident, their bodies become switched. When they tumbled down the stairs, they happened to kiss. They guess that they may have changed bodies because of the kiss. They kiss again and they get their own bodies back. Through kissing they can change bodies freely. They also learn that there are 7 witches with special abilities and that the 7 witches can use their special abilities by kissing, so Urara and Ryu set out to find the 7 witches.

A human space colony fleet is trying to find a habitable planet near the center of the Milky Way Galaxy. The story focuses on three young adults and the events that occur around them as the fleet faces a crisis of alien origin.

Kimizuka Kimihiko is a crisis-magnet. So it is no surprise when his rather mundane flight suddenly enters a state of emergency with a dire need of a detective onboard. Unfortunately, his attempt at avoiding trouble is foiled by a beautiful girl with silver hair who goes by the codename Siesta. Declaring herself a detective, she unceremoniously drags Kimizuka into the case as her assistant. That incident spelled the beginning of an adventure around the globe that went beyond his wildest imagination. Putting their lives on the line, the two took down criminal organizations, prevented disasters, and saved thousands. But the curtain closed to their epic journey with Siesta's untimely death three years later. Resolving to live an ordinary high school life this time, Kimizuka spends a year maintaining a low profile. However, as fate would have it, a girl with an uncanny resemblance to Siesta comes crashing into his life, threatening to throw his peaceful days into disarray.

Aizawa and his classmates of the Central Military Academy must find their way back to Earth after a terrorist attack.

Yorito Morimiya is obsessed with photographing the sky-- sunrises, sunsets, and clouds. While trying to photograph a sunrise, he helps a girl who's fighting a vending machine to get her tomato juice. Then she disappears. The story of a world of mystery and magic is narrated by Sola. An enigmatic girl comes and goes, withholding a dark secret and Yorito's sky becomes the battleground for love and solitude.

In the year 2075, mankind has reached a point where journeying between Earth, the moon and the space stations is part of daily life. However, the progression of technology in space has also resulted in the problem of the space debris, which can cause excessive and even catastrophic damage to spacecrafts and equipment.

Ten year old child prodigy, Chiyo Mihama, is finding it tough fitting in at high school with the girls five years her elder: Osaka (dimwitted with a weird take on the world), Tomo (a powder keg that goes off at a moment’s notice), Kagura (the competitive athlete of the bunch), Yomi (the hothead), and Sakaki (timid and obsessed with a love of animals that isn’t reciprocated). Together with their teacher, they navigate the rough waters and fun times of high school.

Tomoya Okazaki is a third year high school student resentful of his life. His mother passed away from a car accident when he was younger, causing his father to resort to alcohol and cigarettes. This results in fights between the two until Tomoya's shoulder is injured in a fight. Since then, Tomoya has had distant relationships with his father, causing him to become a delinquent over time. While on a walk to school, he meets a strange girl named Nagisa Furukawa who is a year older, but is repeating due to illness. Due to this, she is often alone as most of her friends have moved on. The two begin hanging out and slowly, as time goes by, Tomoya finds his life shifting in a new direction.

The adventures of a present-day, multinational exploration team traveling on the Ancient spaceship Destiny many billions of light years distant from the Milky Way Galaxy. They evacuated there and are now trying to figure out a way to return to Earth, while simultaneously trying to explore and to survive in their unknown area of the universe.

All thanks to the special ability that he developed, Yuu was able to cheat his way into a very prestigious high school. With his power, he thought nothing was going to stand in his way, until he met a mysterious girl named Nao Tomori and other students with special abilities just like him. It was the beginning to a new life.