Unaswered yaoi manga search for: Yaoi expert Lvl. 10 -25

So basically, I would like to ask for help with the following mangas search that I had previously posted but had not received any reply, I know they are hard to find or sometimes is because there are too many questions in the homepage.

The descriptions are shorthened for everyones conveniences, but if more detailed is required I will try to share as much as possible. ALSO! if anyoe would also like to share their unanswered request so I and everyone can see it too and maybe help GO AHEAD!!!!

THANK YOU IN ADVANCE! :)

1.Side story or more like extra of the manga.
-uke and seme are inmortals
-seme gets hurt but uke doesn´t care too much
-Uke´s friend cuts his finger slightly, UKE panics.
-Seme complains about difference in treatment. UKE: Unlike us, he can die!

2.Comedy and school?
-Seme is a mad scientist and uke a sctudent
-Seme creates medicine which turns uke into cat-eared, they have sex

3.Android romance
-random rich teen and his bodyguard ( I think)
-the bodyguard is the seme
-Rich kid gets an adroind identical to himself
-bodyguard falls in love with android
-android cum changes flavors (the rich kid prank or reward for the bodyguard)


THANK YOU IN ADVANCE! :)