Is Onii-chan no Koto Nanka Zenzen Suki Janaiin Dakara ne!! An hental show

Yes, "Onii-chan no Koto Nanka Zenzen Suki Janai n Dakara ne!!" is considered a hentai anime. It contains explicit adult content and themes, and it is aimed at a mature audience. If you're looking for more information about it, please let me know!