This anime is Kekkaishi which is an adaption of the manga series. Kekkaishi is translated as “Barrier master”. The anime started showing in October 2006. The story is about Sumimura Yoshimori, a 14-year-old junior high school boy, is a descendant of Kekkaishi, or an exterminator of monsters. Five hundred years ago, a feudal lord was attacked by demons wanting to retrieve his mysterious inner power, the invincible power that can help them take over the human world. The famous mage, Tokimori Hazama, was called upon, and with his 2 students, managed to save the whole land. But they fell ill, the feudal lord was killed, his power was also buried with him at a site called Karasumori.

In the present day, Yoshimori Sumimura and Tokine Yukimura, heirs of the Hazama clan, became the kekkaishi protecting the land and the power. They use a technique called Kekkai, a form of magical barrier, used to capture and destroy Ayakashi (monsters/demons) that are drawn to this land. Any demons that come near the power will become stronger and therefore Yoshimori and Tokine are to guard the land from intrusion of the Ayakashi.

But some of the demons form a powerful organization to take over that mysterious power. Yoshimori plans to destroy not only the demons, but also to gain the power to completely save the world from being controlled by demons. To do that, he first needs to know what the power actually is, and also strengthen his poor kekkai skills.

Episode 1-2 : Wound of the Right Arm/Yoshimori and Tokine
Episode 3 : Beautiful Ogre-User
Episode 4 : Her Precious Thing
Episode 5 : A Confectioner’s Ghost
Episode 6 : Karasumori’s Night Cherry Blossoms
Episode 7 : The Best Cake
Episode 8 : Yoshimori-like Days
Episode 9 : Dangerous High School Teacher
Episode 10 : Shikigami Chocolate Battle
Episode 11 : Kouya and Madarao
Episode 12 : Demon Dog Madarao’s Sealing
Episode 13 : Appearance of Masamori, Captain of the Yagyou
Episode 14 : Masamori’s Plot
Episode 15 : Yoshimori’s Ambition
Episode 16 : Uro-sama of the Colorless Swamps
Episode 17 : That is God’s Territory
Episode 18 : Days of Toshimori, the Youngest Child
Episode 19 : Attackers With White Feathers
Episode 20 : Weird Surveillant
Episode 21 : Cold Transfer Student: Shishio Gen
Episode 22 : Messenger from the Urakai
Episode 23 : Taking Aim at the Legitimate Successor
Episode 24 : Gen and Love’s Attack
Episode 25 : Tokine and the Handsome Gentleman
Episode 26 : A Night Without Yoshimori
Episode 27 : The Elite of the Council of Twelve
Episode 28 : Kokubourou’s Declaration of War
Episode 29 : The Magic Square of Spell-Sealing
Episode 30 : Karasumori’s Suitable Person
Episode 31 : The Surprising Past of Shishio
Episode 32 : Atora’s Intense Training
Episode 33 : Shige-jii’s Dire Flight
Episode 34 : Dark Voice of Temptation from the Egg
Episode 35 : Kokubourou Approaches
Episode 36 : Shishio Gen’s Last Battle
Episode 37 : Karasumori’s Destruction by Fire
Episode 38 : The Respective Repose of Souls
Episode 39 : Karasumori’s Enigma
Episode 40 : The Road to Kurosusuki
Episode 41 : Days of Special Training
Episode 42 : The Entirety of the Yagyou
Episode 43 : Second Advent of the Black Clouds
Episode 44 : Karasumori’s War
Episode 45 : Kokubourou’s Human Sacrifice
Episode 46 : Mysterious World’s Maze
Episode 47 : Destiny’s Conclusion
Episode 48 : Crumbling Castle
Episode 49 : Sad Demon Flower
Episode 50 : Final Battle!
Episode 51 : Yoshimori and Kaguro
Episode 52 : The End of Kokubourou (Final)