this manga is veerryy old.
the author once always post new updates or illustration of each of theirs oneshot Mainchar!
Housemates is a "sequel" or AU, where all of the couple from each one shot they made, live in one house.
they previously update it on ftheir facebook page, if u want to see more. its been awhile, and im surprised theres someone upload it here ^^
noo they're twins :) in Autumn Last Rain bc they were biologically modified, their organs will start to fail around 16 years old. however the doctor said that one of them can live on if the other gave all of their organs. truc anh was about to start a surgery (so i assume she wanted to give her organs to ky anh instead), when ky anh barged in and take her away. this is bc they rather have a short life but together.
the couple from Autumn's Last Rain died, right? and they're the couple here? i'm confused but this is so cute