Well I can say this manga too precious hahahaha but seriously, it really is precious... this is one of the mangas I have ever read where parents are supportive to their child's marriage even though it's a same sex marriage.. I'm happy that even though this is Yaoi and you know Yaois(some though) are, they always have sex and everything but this time. It can be fluff, adorable, drama, romance at the same time... It made me sad at the ending part since every parent can relate on what's happening like for example, Kirishima spending time with his Father-in-law by sharing some photos, memories and stories about his child. Accepting that they have to let their child go and have some fun with his husband too..
I really love it ehehehehehehe....
Boku no Hero Academia - Happy Birthday Katsuki (Doujinshi)