Place it at the start of an edit, right where Otto is introduced, then follow it with a reaction sound once the name has landed. A Bruh sound works as that follow-up, while an Oh My God meme sound fits when the introduction needs a bigger reaction.
このサウンドについて
The Otto clip is a short meme sound lasting about three seconds, built around that single name and made to be recognised instantly in a chat or edit. It gives a light, teasing feeling, like calling someone out with a knowing wink rather than a long joke, and it works best as a brief burst of personality that makes a familiar name feel like the punchline itself.