YA Fantasy. Only male witch, extremely powerful, wants to be a mechanic. Read around 2017-2019.

[Erin]

I’m looking for a.book I read somewhere around 2017-2019. It was about a society where witches are always female, but all children are tested. This boy goes to be tested with his female friend, and is revealed as an extremely powerful witch. There are assassination attempts, and he needs remedial tutoring since males aren’t taught basic elementary magic. Book has a Japanese feel(character names, culture)

[Rainbowheart]

How old is the boy, teenager or a younger child?

[Erin]

16-18

[Erin]

I seem to remember the cover being shades of dark/electric blue and black with a motorcycle. University type feel, MC’s magic was very strong and of a dark bent. All students required to join a club, he joined a club that built and battled robots