I'm merely the prince's friend, but before I knew it, I had a harem.

Shiro, an average high school student, by chance discovers the secret of Mikoto, the stunningly handsome transfer student known as 'The Prince': he's actually a girl. Shiro promises to keep Mikoto's secret, but he finds himself constantly asked for love advice by a classmate gal who's smitten with Mikoto, and dealing with the jealousy of a yandere junior who tracked Mikoto down from his previous school. It's pure pandemonium.

To protect Mikoto's secret, Shiro sets out to resolve these issues, but before he knows it, he's somehow ended up being liked by the gal, the junior, and even Mikoto, forming a harem around him.

"Wait, I'm supposed to be 'The Prince's' friend!"

This is a romantic comedy about Shiro, who started out as 'The Prince's' friend, but somehow ended up creating a harem while giving love advice and fending off obsessive stalkers.

Also published on Kakuyomu.