Kinamara's manga / #nephew(4)

Uke and seme are nephew and uncle. Uke seems to have been abused by his mother, also known as seme’s sister

Uke used to live with seme’s dad(?) and when the dad died uke took care of seme as a child, gew up and went o university and then suddenly returned to where uke lives. It was sudden but seme told the uke why he returned is so he could be Uke’s lover and kissed him.