Soul Eater Not!

Synopsis

From Yen Press: Ding-dong! DEAD-dong! Class is about to begin, and you don’t want to be late on your first day of school! Join Tsugumi Harudori in the NOT class at Death Weapon Meister Academy, a school dedicated to training transforming Weapons like Tsugumi and the Meisters who will wield them. Many NOT (Normally Overcome Target) students aspire to join the elite EAT (Especially Advantaged Talent) class, but it may take Tsugumi some time to find her confidence and a partner at this crazy school!

Synopsis & details from MangaUpdates