
It hasn't been translated yet but I believe so, the hero party looks similar plus the MC is called Ray homonym for Rei
https://comic.pixiv.net/viewer/stories/139466?srsltid=AfmBOop3_rBGO8VvmE9ZiOmJTfMW2Ia_fMR8-Ne6tjsp-bqHX1PuGApM

This is the novel/raw if anyone wants, just wait for Google to auto translate it, don't know if another translator has already picked it up on NU yet
https://novel18.syosetu.com/n0449go/

Oh so there are 2 versions of that story then.
https://comic.pixiv.net/works/11313 this is the one we are reading now.

I've just read the novel given by huahua.
for me it's still sad about him can't go back home to meet his family and pets, but .....
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because the hero want to listen to him and be beside him, he started to get better and accepting his life.
The people in the palace also felt guilty and now being kind to him (even worried about him, because he has the tendency of just not saying a thing when he had some trouble in mind, due to not being listened before).
and they even accepted him and hero's relationship.
so I think, ok.
Wait!!
is this like the one in the BL isekai anthology? where the MC was forcefully summoned to another world and have to be a sorcerer, and he loved pets/animals thats are cute, that he always cried in the travel because every animal is actually monster he and the party had to kill.
he just want to go back home to his world, but at the end he can't. there was no way back although the kingdom had promised him.
while he had already lost one arm to help the hero to finish off the demon king.
he then vanish from the world, and build a tall tower and live a secluded life there.
well at the end, the hero came to live with him anyway.
They are making in into a long story?????????????
PLEASE DON'T MAKE HIM CAN'T GO BACK HOME, I CAN'T!
Although this story is where his dog is at his mothers. but hei! he didn't even had problems with his mother. and his doggggg!!! or at least, make him have another dogs in this story. T_T