It's all thanks to Natsu's tutor. I think maybe his tutor already told Natsu everything about Ryou. Natsu must not forget about Ryou. Because this is very important to Natsu. So Natsu already belong to Ryou & Ryou already belong to Natsu too. I think it's the best to become their true lover but not as their brother. I think they have been sex together because they have been living together. It seen Ryou has already been his treatment. Now, he's okay for the rest of his life. THIS IS THEIR PROMISE.
BEWARE!!!!!!!!!!!!!!!!!!!!!!!!
It's all thanks to Natsu's tutor. I think maybe his tutor already told Natsu everything about Ryou. Natsu must not forget about Ryou. Because this is very important to Natsu. So Natsu already belong to Ryou & Ryou already belong to Natsu too. I think it's the best to become their true lover but not as their brother. I think they have been sex together because they have been living together. It seen Ryou has already been his treatment. Now, he's okay for the rest of his life. THIS IS THEIR PROMISE.