Chiito Sukiru 『Suimin Gakushu』 de honobono Isekai Seikatsu – Chapter 2 : Sleeping in the Sky
Harumi is currently sleeping in the air and have mastered Air Sleeping. After getting reincarnated to another world, Harumi went to Sleep→Flew→Air Sleep. Nevertheless, the status in his cheat skill【Sleep Learning】went skyrocketing.