In game, Jojo will be encountered in the forest where the eponymous champion has the option to befriend Jojo and meditate/train with him in the sacraments and rituals of his order. This will provide a means of keeping corruption low and allowing the player to learn Holy Skills to defend themselves from evil demons.
Alternatively, they can rape the cute mouse boy turning him hostile, and if they have enough corruption they can transform Jojo into an Incubus in which his eyes turn brown, his immaculate white fur becomes grey, he begins running around naked raping anyone he comes across with his enhanced cock and balls, and he becomes the Champion's loyal sex slave. They can then use a magic crystal stolen from a goddess to transform Jojo into a tentacle monster for even more fun. In the mods of the game, there is also an event in which Jojo can accidentally drink a potion to that bimbofies him. This alternate form is known as Bimbo Jojo or Joy and has platinum blonde fur and a feminine body, although not completely feminine as she still has a penis. While still a generally pure and helpful being Joy will now have her mental faculties diminished and will prioritize debauched sexual gratification over maintaining her vows of chastity and purity.