The Magical Boy and the Irregular Magic Book

This is a parallel world where technology is no different from the modern world Suddenly, a kind of weirdo with tentacles all over its body and feeding on humans appeared in the world. They have various special abilities and are hidden in human bodies. If someone is infected when they are 10 to 15 years old and does not become a monster, they will be transformed into a magical boy or magical girl with strange abilities. They hunt monsters and become stronger continuously. However, their number is rare and their mortality rate is relatively high. Therefore, if they do not become monsters and escape in other age groups, they will become people with special abilities** and be able to use weakened versions of monster abilities. Meanwhile, our protagonist Chidoriha! A magical boy begins his journey... There is no entertainment in this world Supplement: The ability that the protagonist of Chidoriha can use requires cooperation with Ruba, turning into a character in the League of Legends, and borrowing power... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.