Don't know about the first manga but the second one sounds a lot like Retsujou - I'm not entirely sure though. http://www.mangago.zone/read-manga/retsujou/
Hope I could help. :d
Ahh - on second thought it might not be Retsujou, since the rich guy is the seme in that one... (⊙…⊙ )
OMG!!! THANK YOU SOO MUCH!!!!! It is Retsujou! The last time I read it was years ago, I really thought the rich guy was an uke.. ^^' But tysm! You're my hero!! TwT
The first one could be this?
http://www.mangago.zone/read-manga/eden_no_uragawa/
YES!! THAT'S IT! THANK YOU SOOO MUCH!!! ٩(๑❛∇❛๑)۶ Now my life is complete~
Sorry it's not related but please help! Searching for 2 yaoi manga
1. A guy (a) moved into the mc's (b) house because his 'lover' (c) sent him there with his luggage.. then they heard that this 'lover' (c) died with his real lover (d) and abandoned (a).. (a) and (b) weren't too friendly at the beginning.. then (b) went to a moutain for his job and (a) stayed home.. (b) wanted to send (a) a souvenir and after he sent that package we 'see how he slipped off the cliff'... (a) got the package and was frighend to open ot, thinking he was abandoned again.. but (b) came back alive and happy end!
2. A guy who solves things with money since he was a child. He liked this guy for ages and desided to biy the company his crush is working for.. the rich guy (uke) forced his crush (seme) to have sex with him.. the seme asked why the uke is always using money to solve things.. the uke thought it was the only way to make people stay with him cause he's not good at expressing words and showing expression..
Hope someone can help me. I've been searching for those for ages! T^T