トリニティセブン 7人の魔書使い [Trinity Seven - 7-nin no Masho Tsukai]

In Trinity Seven - 7-nin no Masho Tsukai, a young man named Arata Kasuga enrolls in a magical academy after a catastrophic event, only to find himself surrounded by seven powerful female mages—the Trinity Seven—each wielding a unique "Grimoire" of immense power. Published by Kadokawa since 2014, this harem fantasy series blends action, comedy, and magical lore, with writer Kenji Saito and illustrator Akinari Nao at the helm. Its 26-issue run has established it as a notable entry in the modern magical school genre, balancing high-stakes battles with character-driven relationships.