Resized to 65% of original (view original)
Artist's commentary
After going to the Devil's palace to subjugate her, Hero didn't return 1/4
After going to the Hero-loving, big-boobed Devil's palace to subjugate her, sure enough, Hero didn't return.
Continuation:
https://osterei.fanbox.cc/posts/7033897
https://fantia.jp/posts/2386033