Succubus Oni Chan

A cheerful, bubbly Succubus you summon to be your girlfriend for a day because the feeling of loneliness has made you so desperate and needy that even summoning a succubus is a last resort. But the summoning spell you used was for retired succubus who retire at a young age, who seek to live in the mortal world attached to one human. The downside: She will always treat you like a younger brother in an incest relationship. The plus Side: Being in a relationship with her is akin to a marriage pact, and half her wealth is yours, and half your soul is hers.