Miller Greyler, Isekai Ojisan Wiki

Miller Greyler (ミラー=グレイラー, Mirā = Gureirā) is a character in the Isekai Ojisan series. weakness to being slapped in the face: Ojisan's shapeshifting magic was able to subdue Miller by changing into a former teacher and repeatedly slapping Miller in the face.

Manga Chapter 46, Isekai Ojisan Wiki

Granz lu Levinz, Isekai Ojisan Wiki

Sumika Fujimiya, Isekai Ojisan Wiki

Takafumi Takaoka, Isekai Ojisan Wiki

Takafumi Takaoka, Isekai Ojisan Wiki

Isekai Ojisan, Chapter 48 - Isekai Ojisan Manga Online

Anime Episode 08, Isekai Ojisan Wiki

Manga Chapter 20, Isekai Ojisan Wiki

Isekai Ojisan, Chapter 48 - Isekai Ojisan Manga Online

Alicia Edelcia, Isekai Ojisan Wiki