Responses
I'm hoping that they just forget but at the same time, he has assistants and editors looking at the panels before releasing the chapter sooo (⊙_⊙)？
Then my theory if it's not a mistake:
"Not with you on this one Iruboy! I quit!" Said Ali as he abandons Iruma for deportation(• ▽ •;)
This chapter made me jump out if my bed (〒﹏〒)
But a friend made me re-read it because the ring is missing in one panel (where he open his hand) and was theorising about it, but I think they just forget it. (◡ ω ◡)