It ends in 3 chapters. I read the author's note in Korean and it said final episode cherry~peach
hmmm yeah sorry i relied on the baka update status so i went around the net for a bit and found out when series are getting low viewers rate they get terminated (probably by lezhin)
This ends in like 3 chapters. It coulda been a good psychological manwha but idk why the author ended it like that...