Mahouka Koukou no Yuutousei Kyuukousenhen

Baka description:
“One such setting is the “Nine Schools Battles”, officially called The National Magic High School Good Will Magic Competition. Every year, the best Magic High School students gather together, unfolding a story of frustration and glory by putting their young pride on the line.”
Have fun!

Other manga:

魔法科高校の劣等生 九校戦編
Mahouka Koukou no Rettousei – Kyuukousen-hen
Mahouka Koukou no Rettousei – Nine Schools Competition
Mahouka Koukou no Rettousei: Kyuukousen-hen
Mahouka Koukou no Rettousei: Kyuukousenhen