The summary is confusing, perhaps it's translation?? It gives the impression of MC being worst than a straight-man. You missed a good opportunity there. But I could be 100% wrong. I hope this is like other CNs where MC fools the silly girl to marry him.
Little Cha Doesn't Eat Spinach
1の人に「いいね!」しました
いいね返事はありません。最初になろう!