Age Gap

16 years age gap. that is a HUGE gap alright.

its basically college student x milf

8 years age gap.

Demon x Human

considering that this is made in the 90's, this 'shotacon' joke did not age well. I hate Sugiura sensei for that, but can't blame her for it considering the year, ig. the thing is, author is doing a 'joke' saying Blood (demon mc) is a shotacon/ped*, because that 1 single fucking page where he look at memories from Ishuca house and saw small Ishuca, from the reaction he find small Ishuca cute (bc its Ishuca), and its cute as in looking at normal child and say 'how cute'.

12 years age gap. Its shounen ai and slice of life.
The age gap is surely not a flattering numbers, thats for sure. and all characters are aware of it...
I have no problem with the age gap IF the high schooler is at least a collge student or adult. But its in reality is a high school teacher x student. This make me want to cry bc of the fact it has 14 volumes (and currently still an ongoing series).