Yuusha Party wo Tsuihou sareta node, Maou wo Torikaeshi ga Tsukanai hodo Tsuyoku Sodatetemita - Vol. 1 Ch. 1.2

[MangaDex]

 

[NiceGhost]

That guys head made me stop reading and make this comment.,

 

[D-mann9000]

"A spell that creates diamonds doesn't exist in this world!" Didn't you summon him from a different world?

 

[Coldlight]

Pretty dumb way to get banished, but I'm sure in this kind of story the humans who banish the protagonist will somehow be revealed to be evil anyway.