Gridman Universe

At Tsutsujidai High School, after class, Yuta Hibiki repeatedly drew and erased Gridman in his notebook, trying to recall the memories of him. This world was once created and destroyed by a girl. The one who saved her heart was the hyper agent Gridman from another dimension, along with the monsters she created with a heart, and Yuta and his friends. Now in his second year, Yuta, who has moved to a different class from Rikka, resolves to confess his feelings. However, their peaceful daily lives began to crumble with a deafening roar. In the midst of the crisis approaching Yuta, Gridman suddenly appears and speaks to him: 'The balance of this world is about to collapse.' Soon, the crimson dragon Dyna Rex, a new generation middle school student who is Gridman's ally, and residents from other worlds, including Asanaka Yomogi, appear before Yuta one after another. While hiding his feelings for Rikka, Yuta's extraordinary journey begins.