The character next to Irisu is from ダリヤ～Lasciatemi_morire～. I'm not sure if there is a tag of that.

I think the tag forget-me-not here isn't the right one. The character next to Ib is probably B.D. from Palette ~forget-me-not~, a pretty old freeware game. I couldn't find the correct tag. Beside, the wiki entry for forget-me-not is probably not the correct one, especially that there's nothing in danbooru related to the wiki entry.

T34/38 said:
The character next to Irisu is from ダリヤ～Lasciatemi_morire～. I'm not sure if there is a tag of that.

I guess it's Dahlia from Dahlia ~Lasciatemi morire~. Not sure if it's the correct romanization.

anybody know anything about this Dahlia ~Lasciatemi Morire~ game? cause I can't find anything expect some Japanese playthroughs and this picture in all honesty
I'd do the tagging but I have no knowledge of the game