Yes, you can host manga, anime or hentai at Hostinger, taking the following into consideration:
All hosted materials must comply with applicable laws and regulations, including intellectual property rights. In case there's a copyright violation, we reserve a right to suspend your hosting upon receiving a complaint from the intellectual property owner
You are not allowed to host content of illegal nature or that promotes or encourages any illegal activity
You are not allowed to host content that promotes, encourages or engages in child pornography or the exploitation of children
You can find more information about the general rules of conduct in our Terms of Service and Trademark/Copyright Policy
If your website is primarily centered around delivering multimedia content, it will likely demand higher resource requirements. In such cases, choosing a Cloud or VPS hosting plan would be the most suitable option.