Third-year middle school student Yu-yu Kondo lives in Kanazawa city of the country of Kaga. Being unable to reject requests, Yu-yu often gets caught up in his sister's hobbies. When Yu-yu could no longer bear it and ran away from home, he was saved by Megumi Okura. Megumi invites Yu-yu to the Night Amusement Park "Wonder Hill" where'' her friends gather. The amusement park is where'' many youths of the Vanguard-centric group "Team Blackout" gather. And this is how Yu-yu encounters Vanguard and was drawn in by the appeal of Vanguard and the world and friends he had never seen before.

Atsushi Kamiya, a former captain at Kakegawa High School and the world-renowned "courageous captain" for a famous Italian soccer team… And Hideto Tsuji, a student at Kakegawa High School, who seems uninterested in the now-weakened soccer team… Their meeting is the start of a new legend...

Saat masih kecil, Musashi dan Kojirou berjanji untuk membentuk kelompok samurai terkuat pembasmi iblis setelah mendengar kehebatan kisah samurai dari ayah Kojirou.

Yuuri mempekerjakan pelayan (maid) baru. Dia antusias dan serius dengan pekerjaannya, tapi sangat mencurigakan. Yuuri berusaha mencari tahu identitas maid Lilith yang tiba-tiba muncul di rumahnya. Sifat asli dan tujuannya begitu misterius, tapi ia bekerja dengan baik. Keterampilan memasak dan mencucinya begitu sempurna. Mata ungu yang berkilau seakan menyeret Yuuri ke dalam dunianya. Ini adalah kisah anak laki-laki kesepian yang selalu mencurigai pelayannya yang misterius. Kisah ikatan dua orang yang terbentuk dari rasa kecurigaan.