Tsubaki, who places an importance on "being cute," picks up a strange fluffy creature and brings it home with her. She brings it into the bath and it transformed into a naked boy?! What is going on? Is Tsubaki going to live with "Fuwa" (as in Fluffy) the alien boy??!!
My Cosmic Monster is a completed manga by Motteke, first published in 2016. It blends sci-fi, romance, comedy and slice of life. You can read all 13 available chapters of My Cosmic Monster online for free on MangaPulse; the newest is Chapter 10.6, added 2020-10-28. The series is finished, so you can read it from start to end in one go.