Tensei Shitara Slime datta Ken Ibun: Makuni Kurashi no Trinity
That Time I Got Reincarnated as a Slime: Trinity in Tempest·転生したらスライムだった件 異聞 ～魔国暮らしのトリニティ～
A small slime named Rimiru has successfully created a magical kingdom for monsters known as Tempest, which is flourishing despite challenges. Three individuals—Phos, a fox girl; Stella, a dragon girl; and Nemu, a winged girl—arrive at Tempest and are surprised by the rapid progress of the kingdom.