Kindergarten WARS Vol 1

From the Yen Press edition

Rita is Convict No. 999, a former legendary assassin who now works at a kindergarten for the children of the world’s most powerful people. Her job is to protect the kids from the clutches of would-be assassins! But even with her overwhelming strength, Rita has one fatal flaw—she falls head over heels for good-looking men, even if they’re her enemies! Can she find the hottie soulmate of her dreams amid the chaos at the “world’s safest kindergarten”?

Source: Yen Press