I don't know if I can find any bad part in this BL even if I search with my magnifying glasses on...all I can see is spotless acting and raw transparent adult emotions with relatable characters to swoon over.

YES it's cute, fluffy, refreshing and calming.
For me the most beautiful thing is that Togawa didn't forced his feelings on Nouze-san, this story happened naturally. Being single and close to 40 Mr. Nouze must have felt his life boring and uninteresting. At that time Togawa came into his life like a breath of fresh air. They both understood their boundaries as subordinates.

They are adults in love and but can giggle like a child over little things.

I can conclude this as a healthy BL to feed on whenever you're tired. Plots like this tells us that love at first sight still do exist and stays for a longer time, which makes me wonder why something like this doesn't happen to us :')