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.

After succeeding in their winter conflict against Taiju Shiba and his Black Dragons, the Tokyo Manji Gang absorbs their group's remaining members. Due to his heroic courage and indomitable spirit, Takemichi Hanagaki should have accomplished his goal of defeating the tragic fate awaiting his girlfriend, Hinata Tachibana. In reality, Takemichi's troubles are far from over. Although Takemichi's actions have exposed Tetta Kisaki's treachery, the conniving schemer has found power elsewhere: Tenjiku, a dangerous gang led by the enigmatic Izana Kurokawa. Izana sets his sights on Manjirou Mikey Sano, pursuing a vicious interest in the Tokyo Manji Gang's aloof leader. In the future, Takemichi discovers that the machinations of Izana and Kisaki led to Mikey's moral ruin—a downfall that directly results in Hinata's death. Unfortunately, a terrible loss robs Takemichi of his time-leaping ability, stranding him in the past with one final chance to rescue everyone he loves.