On the reason the mcs nickname is tanuki must be either his eyeballs due to his dark circles or he has pubes so big they can turn into a bag like tanuki do in mythology i guess 1 makes sense
is the title whatever trashy isekai theme was popular because its like those times you need to think of a title for powerpoint presentation and you just worked on it for 8 hours so now all sleep deprived you give it a nice name like this.i love trashy isekai dont get me wrong.
And love doesnt make neo and see mc in the last chapters yup it seems about neo enough so it works out well i belive didnt read the endingn but it will go well i hope
Translator, i believe it shouldn't be sister and yes miss or if you like to keep the original nee-san as its used for older then yourself, young girls(adolescents/adults)