Succubus Yondara Gibo ga Kita!? episode 1

Takashi, is adolescent who has an exploding libido, he believes on the information from the net and endures the masturbation for 72 days for a sacred ritual of summoning a succubus with a secret spell.
But for some reason, the succubus that appeared in her flash was just like her step mommy-in-law!
He summoned a skilled succubus named Eririn, is puzzled about having sex with her son-in-law, but he can’t resist the temptation of her well-bred body and exquisite sexyness. Forgive me mom looked like succubus!, I need to graduate from being a virgin…