High school student Yuuichi Katagiri cherishes his close circle of friends, composed of four classmates: Yutori Kokorogi, Shiho Sawaragi, Makoto Shibe, and Tenji Mikasa. However, when the funds for the upcoming school trip are stolen, the incident causes Shiho and Makoto—who had been tasked with collecting the money—to distance themselves from the rest of their class. Soon after, Yuuichi and his friends are deceived into meeting up and knocked unconscious by unknown assailants. After waking, the group find themselves confined in a white room with controversial figure Manabu-kun, who reveals that one of the five has gathered them together to clear their personal debt of twenty million yen. To pay off the amount, they must participate in a variety of psychological games that will test the true nature of their friendship and humanity. Distressed and isolated from the outside world, Yuuichi and his friends need to cooperate to complete the games. But as their concealed feelings and problematic pasts begin to surface, their seemingly unbreakable bond may soon shatter into irreparable pieces.

Earth Energy is a force generated naturally by the Earth's rotation. A mysterious alien enemy from space known as Dark Spinner has invaded Earth in order to steal the Earth Energy and transform it into Dark Energy. The only ones who can stand up to stop them are twin brothers named Raiga and Kuga, who are fighting together with the earth defense team Earth Granner. But will they be able to protect the earth? (Source: Tomica Wiki)

Shizuku Mizutani is apathetic toward her classmates, only caring about her grades. However, her cold view of life begins to change when she meets Haru Yoshida, a violent troublemaker who stopped attending class after getting into a fight early in the school year. He is not much different from her, though—he too understands little about human nature and does not have any friends. Much to Shizuku's surprise, he proclaims that she will be his friend and immediately confesses his feelings toward her upon meeting her. Because of her lack of friends and social interaction, Shizuku has a hard time understanding her relationship with Haru. But slowly, their friendship begins to progress, and she discovers that there is more to Haru than violence. She begins to develop feelings for him, but is unsure what kind of emotions she is experiencing. Together, Shizuku and Haru explore the true nature of their relationship and emotions.

Long before modern times, sweets-loving Princess Chizuru Ooshima painstakingly studies to pass her English proficiency exam. To keep Her Highness focused, Lord Shogun bans all sweets in the town of Edo. Meanwhile, tensions arise between two powerful factions: the Mizutani group, led by the respected Shizuku Ane-san Mizutani; and the Yoshida group, under the leadership of the capricious Haru Harunosuke Yoshida. Ane-san tirelessly tries to make contact with Harunosuke to deliver the news of the founding of a new temple school. But soon after she meets him by chance, romance blooms between the two. However, not everyone approves of this development—and they might stop at nothing to prevent their happiness.