Game of Thrones: Giant of Light

The Giant of Light, Ultra Seven, Glory of the Seven Gods, Monster Slayer. Accidentally arriving in the world of Game of Thrones, he becomes Ultra Seven, Count Seven's eldest son. However, thanks to a pair of genuine Seven glasses purchased for zero yuan, he gains the ability to transform into Ultraman Seven. He then discovers that this world also has monsters, so he pulls out his Seven glasses and shouts "Seven!"