Mirumo de Pon New~

Mirumo confronts a crisis that befalls the fairy world. After completing his training in the human world, Mirumo returns to the fairy world and leads a busy yet fulfilling life. One day, a mysterious black cloud appears in the fairy world and attacks the fairies. In the midst of the chaos, Mirumo's wife, Rirumu, is kidnapped...
The story follows Mirumo's struggle to get Rirumu back, alongside his rival Yashichi and his younger brother Murumo.
(Source: Natalie, translated)