Nearco  

, ネアルコ

The character you're referring to is one of the hosts on "The Liar Game." Although they resemble Leronia, their appearance differs due to a different mask. They first appear in Round III alongside Leronia as co-hosts. In terms of personality, this host admires Yokoya and finds it difficult to comprehend Nao's fascination with Leronira. By the end of Round III, they too are intrigued by how she will proceed. The character has a long moustache on their mask.