エルフ先生のトイレはどこですか？•Elf-sensei no Toilet wa Doko desu ka?

Where Is the Elf Teacher's Toilet?

Eruru, an elf from another world who has come to a human boys' school as an intern teacher, is troubled by the elven rule that one must go the bathroom in a place with abundant nature. <BR><BR> (Source: Natalie, translated)