Aren't they from Takopi? I haven't watched/read it so I don't want to make assumptions but they look like those characters.
Yes. Takopii is especially recognizable. Looking up images of the franchise you think they're from is usually a good way to confirm they actually are from that series. I've identified many different characters this way from series I've never watched or even heard of.
If you're resonably confident but still want a second opinion, you can also tag the characters while also adding the check character tag.
