Is Liu Shusheng's wedding a costume drama?

This drama is a costume drama, a Korean costume drama. The two protagonists in the play fall in love after marriage, because one of the leading actors' sisters refused to get married and ran away, but marriage cannot be without a bride, so he married a sister.

When he first got married, he showed his identity to his husband, who was a very kind person and promised to hide until he found his sister. Because my sister never found out, my brother continued to play the role of my sister in my husband's family, and my husband cooperated perfectly.

However, the two actors in this drama have high values. They had no feelings before, because my brother showed his male identity and the other party was shocked. But I didn't expect my brother to be a beautiful and gentle face under the dress of women. In fact, my husband had a secret crush when they got along, but he didn't know his own mind. Once one of his classmates came to his house and saw that there was no emotional interaction between them, so he was bold.

After he married his in-laws, his sister-in-law was very hostile to herself. She felt that her brother didn't take himself seriously after she got married, so he gave her a lot of stumbling blocks. But later, because she was stalking her sister-in-law, she met a rogue. Fortunately, her sister-in-law appeared in time, suppressed the hooligan by force and saved her. The two have been reconciled since then.