MalMal's manga / #Tentacles(2)

MC is an ordinary guy who just recently got fix of all his father’s debt. After moving in to his new apartment an alien space ship crash landed in his roof. The stunning alien explains his quest to find and kill his earthling father for abandoning his son on the planet Alpha. The MC offers to be his Earth guild in exchange for a quick send off. But as their journey continues the become more and more connected to each other after coming to terms with being lonely.

Squishy monsters have entered the world. Our main character is a monster specialist and veterinarian. One day, a squid monster becomes attached to him Like a baby duckling. Now he hast to care for the little monster, including all of his “needs”.