Yes, he is. This is a constantly repeating topic, but once again, many JGV actors actually identify themselves as straight & g4p. Whether they swallow cum or do any other gayer stuffs it really just depends on the actor's principle, lol. Some just take it as a part of their job, some would say no & limit themselves to certain acts.
We can always speculate if they're telling the truth or if it's just marketing gimmick, but professional straight AV actors that do gay porn exist & as long as they officially address themselves as such, I would address them as such.
As for
Dopyu (ドピュー) himself, he said himself that he's straight. Often post stuffs on his X account about his excitement & experience on working with a female partner. He would only comment or advertise his gay works once in a while, although he has more JGVs than straight AVs. Swallowing cum is common for some straight JGV actors. Examples include
Hayashi (林),
Koume (小梅),
Chinkou (陳光) &
Takuto (タクト) among others.
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