There are several isekais with guns. I'm reading this story but I'm not into 4 yo homicidal maniacs. So far I'm giving it 3 stars (I drop things with 1-2 stars).
It's quite refreshing concept, because of her gun mania.. It's way better then isekai with barrier master, where everyone are dying... or isekai with skill thief and harem..
I think the characters arnt very distinct. Also there hasn't been much of a plot so far it's just her learning magic and shooting guns. Maybe when more characters are introduced it will become more interesting,
Out of all the isekai reincarnation manga i read, for some reason, I can't seem to like this as much. Is it just me?