How Old Is Mello in Oshi No Ko

Fans often search for specific character details, including "how old is Mello in Oshi no Ko." It's important to clarify right from the start that, based on extensive official information and the established character roster of the beloved series Oshi no Ko, there isn't a prominent character named Mello. Perhaps this is a common mix-up, or a minor character that hasn't made it into the main narrative we're all familiar with....