Gakuen Babysitters

Chapter 130.5: Saikawa-San's Guide To Putting Children To Sleep
Chapter 130
Chapter 131
Chapter 130
Chapter 131
After their parents are killed in a plane crash, Ryuuichi and his younger brother Kotarou are taken in by the chairman, who they never met before, of an elite academy. Ryuuichi becomes the school daycare's new babysitter.