Raiga died when Gai was around 12 years. Let's say, Buntan was 2 years old at that time. So, (31-12)+15=34 years have passed. 34+2=36. Buntan is around 36 y.o. —This unsigned comment was made by DaGrand (talkcontribs) .

How did Raiga die when Naruto, who killed him, wasn't even born? • Seelentau 愛 14:24, October 26, 2017 (UTC)
No one said that Duy killed Raiga. Supposedly they are making Naruto fight Raiga canon, but that doesn't make the entire filler arc from part 1 canon, they just canonized that at some point, Naruto fought Raiga and may or may not have killed him. This could have happened anytime between Part 1 and Part 2 for all we know.--Elve [Mod] Talk Page|Contribs 15:16, October 26, 2017 (UTC)