Kindergarten WARS Vol 6

From the Yen Press edition

With their fierce battle over, the hit man brothers Natsuki and Haruo are ready to leave Asakusa behind when a mysterious figure approaches them... Meanwhile, the kindergarten staff decide to go out for drinks to celebrate Lyla’s safety in style! With the high-energy atmosphere of the party encouraging them, will Rita and Doug finally share their feelings for each other...?!

Source: Yen Press