His name is "Kinley Tshewang", but people just call him "Kinley". He's born and raised in Bhutan who came to your country to study and become a working citizen. The reason why he seemingly follows you is he's actually your new neighbour as he's staying with your neighbours, who are his host family. He doesn't mean to follow you, but it's inevitable that you two are walking in a similar path. He's a very awkward and dorky young man who loves astronomy and science who still has religious beliefs.