Kekkaishi

The Kekkaishi's mission is to exterminate the Ayakashi that appear within the Karasumori site. As legitimate heirs, Yoshimori Sumimura and Tokine Yukimura carry out their family tradition as the Kekkaishi. Following an incident that occurred five years ago, Yoshimori vows to protect Tokine from ever getting hurt.

During the day, Yoshimori and Tokine are normal students living a regular school life. At night, they protect the Karasumori site as Kekkaishi. One day, the Ayakashi Tsuchigama invades into the Karasumori school grounds. Yoshimori must run through the Tsuchigama's rain of attacks in order to destroy the Ayakashi.

Yomi Kasuga, a Demon Tamer, pays a visit to the Yukimura family under orders from the Shadow Organization. Her arrival causes Tokine to recall the painful memory of the day her father Tokio died. Yomi reveals herself to be an enemy and explains her goal of taking over the Karasumori site in order to strengthen her demon, Yoki. Imprisoned, Yoshimori and Tokine find themselves in danger!

The Karasumori's power causes Yoki to go out of control. Even Yomi is unable to stop her demon now. Hakudo and Odo, who were sent by the Shadow Organization to pursue Yomi, arrive and destroy Yoki. Yomi is then taken into custody for defying orders. As she departs, Yomi learns from Yoshimori the true meaning of kindness.

Yoshimori meets a human ghost who used to be a patissier. The friendly ghost gives Yoshimori some tips on how to bake better sweets. Although Tokine coldly tells the ghost to pass on to the after life, that very same night, Yoshimori senses something transforming into an Ayakashi at the Karasumori!

Yurina Kanda, one of Yoshimori's classmates, is a girl who can see ghosts and spirits. To see one of the 77 wonders of Karasumori Academy'the unseasonable blooming of cherry blossoms'Yurina sneaks into the school grounds late at night. There, she witnesses Yoshimori and Tokine in the midst of exterminating the Ayakashi!

Masahiko, the ghost of a patissier, cannot pass on because he is worried about leaving behind his younger brother Toshihiko. Yoshimori meets with Toshihiko and tells him about his older brother, but is not taken seriously. To help the two brothers, Yoshimori decides to bake the same cake from the brothers' childhood memories.

Yoshimori is gifted with enormous Kekkai power, while Tokine is skilled with precise control over creating the Kekkai. During the battle against the Ayakashi Hiwatari, the two combine their power and skill to defeat the enemy. Realizing each other's strength, both are determined to train even harder to polish their Kekkai techniques.

Yurina Kanda is still troubled by her spiritual powers and asks Yoshimori how to deal with being different from others. Meanwhile, Tatsumi Mino, the substitute English teacher, approaches Tokine. Realizing that Mino is under the control of a parasitic Ayakashi, Tokine and Yoshimori work together to save the teacher.

Yoshimori is depressed after being yelled at by Tokine. To help cheer up his son, Shuji tells him about a legendary chocolate cake. Yoshimori uses his shikigami to go buy the cake, but is discovered by Tokine. Fed up with Yoshimori's irresponsible actions, Tokine refuses to talk to him ever again. But the following day, a black monster appears in the Yukimura residence, forcing Tokine to ask for Yoshimori's help.

Madarao is reunited with Koya, an old acquaintance from Madarao's past. Long ago, the two dogs lived together in the mountains but were chased out by humans. Driven by his hatred for humans, Koya attacks Yoshimori. Madarao asks Yoshimori to undo his seal so that he can settle his score with Koya. Regaining his true form, Madarao begins his battle to the death!

With Yoshimori's help, Madarao succeeds in defeating Koya. Madarao delivers the finishing blow to his old friend Koya, as it was his last wish. But the Karasumori's power causes Madarao to go out of control. With help from Tokine and Hakubi, Yoshimori attempts to re-seal Madarao's power and return the demon dog back to his former self.

Masamori Sumimura, chief of the Night Troops, is the oldest son in the Sumimura family. Though gifted, Masamori was not born with the Hoin mark, creating a somewhat strained relationship with his younger brother Yoshimori. One night, Yoshimori and Tokine battle against Sasorigama. Unable to pierce through the Ayakashi's tough exterior, the two find themselves at odds when Masamori makes a surprise return to the Karasumori site.