Age gap

Unknown age gap. The summary makes it sound like Uke is not an adult though

Unknown age gap, seems weird though, crazy x crazy?

Unknown age gap, but Uke is in college.

Unknown but the uke is significantly younger, I think the seme is like 30-40, and uke used to be his student

21 and 30 (older uke)

Both are adults but it's implied that the ml felt jealous when the MC had a girlfriend at 15. Plus the Mc was a baby when the ml was in high school, I think, so pretty big age gap.

Rating: It's okay out of 10 (I like the spin off of the mc's friend better)

42 and 23 (younger uke)

28 and 22 (younger uke) (taking care of child, not his own, it's his sister)

39 and 19 (younger uke) (a bit weird) (apparently Seme knew the uke when he was younger too, so....)

Unknown aga gap, I think the seme practically raised the uke for a bit, I think it leaves on a big cliff hanger