My Lovey-Dovey Demon [Final] [ebi-hime]

Taiki wants to have a relaxing summer, but his hopes are dashed when Nene breaks into their grandfather’s study, which is strictly out of bounds. Inside his study, Nene finds a treasure trove of dusty old books, including a tome full of instructions on how to summon demons.
Nene sets about this demonic summoning ritual at once, and calls upon a fearsome figure from the deepest, darkest depths of Hell…
Who just so happens to be a cute girl with pink hair and an impressive bust?!
Now Taiki’s in a real pinch. Not only does he have to look after his siblings, but he also has his demonic guest, Elisabeth, to worry about – and she’s fullly besotted with him! What in the world is Taiki going to do now?!