Gero is an utaite known for singing loudly and "passionately" (versus "logically") in his covers. However, he has also covered songs in which he sings seriously, such as "Just Be Friends". He has a low-pitched and slightly rough voice, but can reach high notes with his screaming. He always sings with a lot of emotion, making him stand out among the other singers from Nico Nico Douga.