Hazure Zokusei "Hikari Mahou" ga Kakusei Shite Laser ga Demashita

It's the day of the "attribute" test at the age of 10. Light, a boy who grew up in an orphanage and dreams of becoming an adventurer, is blessed with the rare attribute "Hikari," which is a 1-in-1000 ability. However, although rare, the Hikari ability is considered a "useless attribute." For Light, being stuck with this useless attribute means that he is not suitable to be an adventurer. Still, Light refuses to give up, and becomes an adventurer anyway…

(Source: Booklista, translated)