Uta Koi tells the "super-liberal interpretation" of the Hyakuninisshu anthology compiled during Japan's Heian period of 100 romantic poems from 100 different poets such as The Tale of Genji's Murasaki Shikibu.

Takeru Kamishiro is a normal guy with an ordinary office job but finds himself summoned to another world. Takeru starts his new life in "Madeus," a world with swords and magic, fully equipped with multiple skills! Not only does he have enhanced physical and amazing magic abilities, but also the power to "search" for valuable items. With the cheat skills he's been provided, Takeru starts his new adventure in the new isekai!!

Dr. Hell and his Mechanical Beasts are back, and they're more dangerous than ever before. Kouji Kabuto and Tetsuya Tsurugi fight a fierce battle against these hellish machines, which are under the command of Baron Ashura. Unfortunately, they are defeated, with Kouji's Mazinger Z being captured and Tetsuya's Great Mazinger seriously damaged by the enemy. The devious Dr. Hell quickly converts the captured robot into Ashura Mazinger and uses it to attack the Photo Power Lab. At the same time, Kouji is missing in action, which leaves Testuya to defend the lab in the damaged Great Mazinger. But the forces of Dr. Hell are too strong, even for a brave pilot such as Tetsuya, and all seems to be lost. The battle seems to be drawing to a close, until an overpowering blast fired by an unknown robot destroys the entire Mechanical Beast army. Could this mysterious robot be the legendary Mazinkaiser, and who is piloting it?

The film follows Ryota Miyagi, the point guard of Shohoku High School's basketball team. He had a brother, Sota, who was three years older than him and inspired his love for basketball. Ryota and his teammates Hanamichi Sakuragi, Takenori Akagi, Hisashi Mitsui, and Kaede Rukawa challenge the inter-high basketball champions, Sannoh Kogyo High School.