On what levels of depressing do you want it? Bleak with no hope of happiness or daunting but preserving. There are times where I think a characters situation/environment is pretty fucking depressing but they live and (might) get better
sorry for late reply!!!! no hope of happiness
Ahhh, there certainly are Isekai with no happy endings but unfortunately I've personally avoided them so I don't know their titles you should copy and paste your question to the forums again and hope someone answers the next time
LOLLL thank yu anyway (づ￣ ³￣)づ
depressing isekai plsss