Hello, this will be my first time posting here. I'm looking for two of them, one being a manhwa or manhua though. I can't remember their names for the life of me 😔

The first one is a yaoi manga I read a while back. I remember two high school students talking in a caffe or a restaurant and one was asking his friend to help him cover for him dating an elementary or middle school student from the little boy's dad. Later the friend and the dad fall in love and so on..
It's 2-3 volumes long I think.

The second one is about a human who gets turned into an undead and is forced to leave his little brother and go to a different world. I think this one was a manhwa or manhua, not sure. If my memory serves me right it has 5+ volumes.

Thanks for your help in advance 🙂

edit: Found 2nd. Thank you Sagaris
edit 2: Found them both now. Thank you Shuriken 😀

Second one should be immortal regis.

First one is Dear Gentle Papa