Isekai no Sata wa Shachiku Shidai: Omoi wo Hasemashita

Five days after moving in with Aresh, Kondou comes across a curious magic tool that looks like a kaleidoscope.

(Source: Crunchyroll)

Note: A new episode of Isekai no Sata wa Shachiku Shidai bundled with the third volume of the Blu-ray & DVD.