Is opening a League of Legends themed restaurant an infringement?

No, what rights are infringed, isn't it good to help him advertise, he just wants to use League of Legends to attract young customers, which does not belong to infringement, and the scope of infringement is that he makes a game that imitates League of Legends, not opening a restaurant, and it is necessary to distinguish clearly, the same nature is called infringement Game and restaurant are not infringing.

If you don't get permission, you're infringing.