The name is chosen casually, and there is no outline. It is a burning resentment arising from the fact that there are too few fans of Flash Rail Travel.
The protagonist Eucalyptus is the twin sister of Rean and the twelfth member of the Holy Grail Knights. She has been separated since childhood and is a typical brother-in-law.
There is no cp family flow, an essay written for the sake of writing, and I pray that one day there will be more flash track fans and there will be no need to produce food.