This deals a bit with the “America is England’s brother” issue, it blows the problem to smithereens actually. Pairing: America x England

"I'll make you and your unborn child happy." After hearing about my fiancé's betrayal, I walk off to a feast of revenge! The Duke's daughter, Evelyn, is troubled by the coldness of her fiance, Bernard. When it turns out that the cause is an affair with a commoner woman, she smiles and hides her true feelings, while beginning a plan to send them both to hell...! With the support of Crown Prince Frederick, who dotes on Evelyn, she finally finds true love...!?

A boy loses his long battle with his illness, having never taken a single step into the outside world. He wakes up reincarnated as Luca, the third son of an otherworldly noble. Despite finally having a healthy body, he is neglected by his family for only possessing teleportation magic, and is forbidden from leaving the estate. But Luca's [Teleportation Magic] is special... It's the key to the ultimate adventure he's about to embark on.

After committing suicide with his friends, a man finds himself on a paradisiacal island…