Seriously? I'm a realist. That's WHY I can understand the plot. Being a realist means you actually understand that real life can take many curves and corners than what you just see in front of you. Also, yaoi = story with smut included. Ktbn.
Honestly falling in love with gramps creeps me out a bit. The same way shotacons and lolicons creep me out. M not discriminating though. Btw, I find the plot a bit extreme. Mitsuki's personality just made him unattractive to me. Meh
Good meme

I find it hard to believe a neglected kid who saw a certain grandpa's fireworks would automatically fall into love at first sight or even be entertained by fireworks to such an extent that he would even run out of the comfort of his house and seek the person who made them. If I were him I'd just stay home... and watch that lame TV rom-com.
Forgive me, but I'm one hell of a realist. THIS SHIT DOESN'T CUT IT FOR A PREMISE FOR LOVE EVEN FOR YAOI. But then again, I'll let it slip... to an extent.
Yaoi = Porn without plot