I always thought Fei had killed him. I didn't recognize him at all, in fact I thought it was a different Yoh XD silly me
Yoh left Feilong and went to Taiwan to live normally but Feilong found him there and got him to help against Yan Tsui. Yoh killed Yan Tsui on Feilong's order. Feilong ask Yoh to come back but Yoh want to be his own man. Why he come back now we don't know yet but he speaks as an equal to Feilong so is he not working for Feilong? We don't know.
How do you know all of this?
It's all in the light novel Finder No Rakuin.
But Finder No Rakuin is not written by Yamane Ayano. Isn't it more like a novel version of a DJ?
No. She provided the outline and approved all of the dialogue. Read her note at the end of the novel.
Reread it and suddenly realized that Yoh was back. I always wondered what happened to him but I'm glad that Fei Long kept him around.