the chapter is always short and the update is not too fast so it is always feel lacking, this manga is just too good and too bad I can't find any novel relate to this one.
didnt mc come from 100 years into the future? lol then what is his sis's friend doing there.. she doesnt look like someone who is 100+years old lol...i guess mc is actually 10* years from future... one zero makes a huge difference. translate properly damnit