Is this canon or not? This is how training at the Blade works

Douma x Shinobu - Fanservice on the Verge ("The Blade that Splits Demons")

"Ducky, keep sucking!" - he wants to cum in his mouth again

Fucked Nezuko in the woods and didn't have time to pull out - now he's got semen in her

Which one of these babes would give you? (Demon-slashing blade)

I fucked Mitsuri in the mouth and took my dick in her mouth. Where did she get the creampie from?