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.

Takafumi Takaoka, Isekai Ojisan Wiki

Yousuke Shibazaki, Isekai Ojisan Wiki

Isekai Ojisan, Chapter 48 - Isekai Ojisan Manga Online

Isekai Ojisan, Chapter 48 - Isekai Ojisan Manga Online

Yousuke Shibazaki, Isekai Ojisan Wiki

Raiga Straiga, Isekai Ojisan Wiki

Alicia Edelcia, Isekai Ojisan Wiki

Chiaki Fujimiya, Isekai Ojisan Wiki

Isekai Ojisan, Chapter 48 - Isekai Ojisan Manga Online

Kingdom of Tils, Didn't I Say to Make My Abilities Average in the Next Life?! Wiki