You could try: ‘To Marry You’ it’s on NU and has around 30 chapters translated. The MC is very cute and desperately chases after the ML. However, it doesn’t have much angst. Spoiler The ML does cave in pretty soon (he didn’t want to give in because he thought the MC was too young and was doing this on a whim.) The MC’s dad has a slightly sad story if you think about it. It’s BL as well.