It's a short web nobel. This is the end, they get married and have their happy ending. If the light novel and manga are going to keep going is another story but the original work ends here.
He is not like Hori. If he was, he would worry that she was getting too chummy with girls and worry that she would eventually cheat on him with another woman. But he is not. In fact, I am pretty sure he would be totally into that.
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