Hello guys sorry to bother you all but im having a hard time finding a old manga im reading im been searching for days for no avail so plss i need help..

The main character i guess not sure.. is a girl using 2 swords with glasses then he has this friend which then happens to be a queen type monsters who invade planets then she save this friend of hers... then the monsters were also classified and the strongest ones are called if i remembered correctly were type zeros .. then the girl retires cos her body is getting weak.. then she went to a planet then build a cafe then the planet was also attacked.. then i remember on the last chapters that ive read is that an alliance is fighting a zero type monster on a planet with a spear that disintigrade or like decaying whatever it touches... Im really sorry o dont remember any name plss help thank u 😢