Neko ga Nishi Mukya

Flow—the phenomenon that occurs when matter falls out of balance and changes form. Flow creates oddities big and small that can be disruptive or delightful in equal measure, and it's up to Flow Disposal departments and independent contractors to shepherd the Flow back to its natural form. For Chima Kondo, a 35-year-old woman stuck in the body of a 12-year-old thanks to the effects of Flow, understanding how Flow works and how to disperse it has become critical. But when she joins Flow Disposal contractors Hirota and Shacho of Hirota Flow Inc., she finds that there's more to Flow than she once knew, and plenty more to find out...

(Source: Kodansha USA)