Accomplishing two quests for Apopha Fesssi and the Widow. Apopha Fesssi can be seen inside the Amorous Hallows and in order for you to get the keystone, you need to give her a Futa Titan Colossus and satisfy her sexual urges. Go to the Climax Peak for you to tame some Titan and finish the quest for Apopha Fesssi. For the Widow, you need to give her a Sylvan Elf Female Level 10 with a Juicy attribute. You can go inside the Esoteric Glade and tame some Sylvan Elf that matches the juicy attribute or by breeding some of Sylvan Futa Elf with a juicy attribute and a Sylvan Elf Female and create an offspring with that combination.