Hikaru Minamoto is just like other normal 14-years-old student. That is until he was introduced to Vanguard, which changed his life. After the fateful meeting with the White Knights, a clan that is devoted to stop Nightmare, a beast of destruction, from awakening, he got caught up in a swept of trouble. Disclaimer: Cardfight!!Vanguard belongs to Bushiroad and Akira Itou. Only the original characters and original clans belong to me or a few other guys

Shin was a 16-year-old kid when he was killed by the almighty truck-sama, miraculously Isekai'd to the DxD world. Naturally, as a hormonal teenager with future knowledge of the show, canon was doomed the instant he was reincarnated. OC MC! Will divert from canon! Smart MC! Crack-ish! Semi-OP MC!

Orario, the city of adventurers' paradise. Everyone who comes there has their own ambitions. Some want to become strong, some dream of restoring the pride of their race, and others aspire to become rich and famous. Among them are those who can be considered naive or foolish-those who wish to become Heroes. Of course, Emiya Shirou is one of the foolish ones.

Kanda Kyoichi transmigrated to Konoha and became a temporary instructor at the Ninja Academy. Fortunately, he awakened the Mentor System. By teaching others, he could earn rewards. Thus began Kyoichi's career as a "teacher" in the ninja world. Shisui: "Sensei's unique interpretation of the Will of Fire has given the Uchiha Clan a true sense of direction!" Asuma: "The essence of the jade lies in protecting the people, with the advanced leading the way for the less experienced. Only then can Konoha become stronger!" Kakashi: "He's my life mentor. He transformed Konoha!" ... Years later, in the memoirs of Kyoichi, now the Hokage, he wrote: "I honestly just wanted to be a life mentor!"