any suggestion for yaoi that shows them pass away peacefully together(?) grow old together...

http://www.mangago.zone/read-manga/complex_manda_ringo/

This is my first and favorite shonnen ai / yaoi manga. The ending always gets to me. But beware, of the first chapter, skip it if you must. A lot of people drop it because of it.

http://www.mangago.zone/read-manga/tamayura_yuki_ringo/
It's very a beautiful one

Thank you! I'll read it now

Thanks!