original drawn by abubu

■BAD END Route The hero's journey ended here! Unfortunately, unable to lift the curse of succubus transformation, the party wandered into the succubus cave in the demon continent. All three of them were fully transformed into succubi, and the hero would live as their pet until death...

■Succubus Cow The former hero's aunt. Of the three of them, she kept her mind to the end, but her soul was broken when her sister fully turned into a succubus, and she chose a life where she could continue to breastfeed Kain. The succubus queen entrusts her to take care of Kain, but she believes that Kain is a baby, perhaps because of her memory of breastfeeding him when he was a baby still remaining in her mind. She and Kain rarely has sex except when the succubus queen commands it, and she mainly takes care of Kain's feeding and excretion.

■Succubus's pet, Kain Former hero. When Astraea became the leader of the succubus cave, he was captured on the spot and turned into their pet. At first he resisted, but when the three of them did not respond to his calls, he gradually fell into despair, as he spent more and more time just copulating with the succubus, his thinking ability began to deteriorate. His sexual organs have been modified by the Succubus Queen's secret magic so that succubus can have fun with him. As a result of his long term sexual intercourse with succubus, his body has also undergone other physical changes.

■Succubus The former hero's big sister. She has completely turned into a succubus, and Kain is nothing but a prey to her. At the Succubus Queen's orders, she sometimes has "incestuous sex" while acting like his sister, but she no longer remembers the time when she was a human. She likes to play with Kain by torturing his balls, anal torture, and so on. She usually joins other succubus and devours men as "prey" and rarely appears in front of Kain except when she is called by the Succubus Queen.

■Succubus Queen The former hero's mother. She found a cave inhabited by succubi on the demon continent. Since there were no succubi of the ruling class present, she, a mother succubus of a higher species, became the leader. In front of Cain, she talks as if she were at her hometown, but her behavior is fully that of a succubus. Even in such a state, she still has a special place in her heart for Kain, who she keeps in her bedroom apart from the other "prey," and not only copulates with him directly, but also enjoys abusing him by making him have endurance sex with the succubus in the cave at her whim.