KUROKAMI The Animation

Keita Ibuki is currently a high school student living alone in Tokyo while being assisted by his father who remits money for his allowance and daily visits by his old childhood friend, Akane Sano after his mother dies from an encounter with her own doppelgänger as a young boy. After seeing the splitting image of someone with the same looks as his own mother, Keita visits a ramen stall when Kuro shows up with her dog, Punipuni. After Kuro receives her ramen from Keita, she is severely attacked by an unknown assailant who was ordered to capture Kuro alive at all costs despite Keita trying to stop him. He later meets with one of his neighbors, a young girl named Mayu, only to watch a speeding truck run her over after she claims that she had met her double.

Keita and Kuro encounters a Tribal End sent to capture her alive after the previous encounter at the ramen stand was deemed to be a failure due to the Tribal End's defeat at Kuro's hands. In the midst of the fighting, Keita is killed when his heart was pierced by the Tribal End's mysterious Exceed energy in an attempt to fight Kuro. To save Keita before he dies from his fatal wounds, Kuro decides to create a pact between them by exchanging their hearts after she was able to bring him to safety. Kuro was once more able to defeat the Tribal End by electrocuting him after she created the pact with Keita successfully.

Keita had some new issues with Kuro, regarding the concept of Synchronization as he felt his entire life had changed after Kuro created the pact. It was until the encounter with Keita's teacher and covert Tribal End agent, Tsubota-sensei, that Keita realizes that Kuro was right all along and thus teamed up with her to defeat him after Tsubota initially gains the upper hand against Kuro due to issues of synchronizing properly with Keita. The two escape from school, leaving an unconscious Tsubota behind after Kuro was able to incapacitate him by sychronizing together in order for Kuro to use her Exceed abilities against her opponent.

Excel and Steiner conduct a covert mission to test Akane if she has strong Tera energy flowing throughout her body after the two had arrived in Japan. Later on, Akane meets with Keita and Kuro in a small restaurant after being followed secretly by Steiner and Excel from the local bank where she works as a teller. However, the three are ambushed by Tribal End bikers sent to apprehend Kuro and eliminate Kuro and Akane. With Steiner's intervention, he engages Kuro in a fighting match to test their fighting strength after driving the Tribal End bikers away from them when Kuro was not able to defeat the bikers herself.

Steiner faces off against Kuro in a one-on-one match, to the point where the two Tera Guardians were able to show off their Exceed skills and place the match evenly before Steiner was able to subdue Kuro for the count due to his superior skills against her. Despite Kuro and Keita's defeat by Steiner, Excel offers to bring them home with Akane. The two Noble One operatives disclose information regarding the death of Keita's mother when they show a photo of her supposedly in a covert operation conducted in Okinawa under Hiyou's command, bringing Keita bad memories regarding the death of his mother years ago as a child.

Keita is kidnapped from the streets of Tokyo by Mikami Houjo after getting her orders from Hiyou in order to get Kuro to her. Once at the mansion, the two Tera Guardians challenge each other to a fistfight. Both use their Exceed moves in order to overpower each other and gain an advantage, but Mikami loses the match when her contractee Shingo collapses and dies due to health complications when he became very old despite his difference with his age and looks from his time with Mikami in using his contact powers. Seeing that he had die, Mikami no longer wishes to fight them and allows them to leave the mansion grounds for good.