Saigo no Ω wa Tsugai ni Narenai

Only Miyamoto's blood was infected with oak, and the only surviving oak was the only one in the world with antibodies. He was isolated by government research institutions and forced to make children with alpha, but Honda, who was elected that day, was unlike anyone ever, and in parentheses the moment they met! He asks for Honda in Alpha in his instinct and is consumed by lust. The relationship between the two people who are convinced this person is their fate but cannot be their turn.