As said in the title, I'm looking for novels (or manga) that have romance and tragedy in them. The kind that makes you feel hollow inside when you finish reading them. So a sad ending would be preferable. Something like: Shuumatsu Nani Shitemasu ka? Isogashii desu ka? Sukutte Moratte Ii desu ka?
That's not the right way to find that feels I think.. You read the novel, you like the characters only to find out they've to be separated leaving you with hole in your heart.. that's hollow.. If you've already know the ending would be tragedy, it wouldnt be much fun anymore.. Btw, Spoiler: Sukasuka ending what's Sukasuka novel ending? I heard chtholly survived the last fight tho? She live in our hearts Anyway, here's my recommendation: Hikaru ga Chikyuu ni Itakoro Utsuro-no-hako-to-zero-no-maria Tomorrow I Will Die You Will Revive It's bittersweet not tragedy..
Try any Tong Hua novels, they’re all romance/tragedy and very well written https://www.novelupdates.com/nauthor/tong-hua