10 Days with My Devil: Shiki Kurobane (Main Story - Summary, Walkthrough and CGs)

Shiki is an aristocrat who could never get the hang of manners, small talk, or even smiling. He thinks of himself as a total failure and has not seen his parents since he moved away from home. He secretly delights in collecting toy prizes, but avoids social interactions and anything else he deems a "hassle". His room consists of just one huge bed, where he spends most of his time sleeping.

As part of Kakeru Kamui's group, Shiki performs reconnaissance on toastees. He observes them in secret and erases their memories if they see him. However, his special mind control power, for some unknown reason, does not work on the MC.

Summary
You ask for 10 more days to live so that you can confess your feelings for someone you have only loved from afar. And you choose Shiki to be your unwilling demon guardian. Shiki is a difficult demon to deal with: He calls you an idiot, says you look gross, and even headbutts you. And yet, you find yourself enjoying spending time with him more and more with each passing day when you should be focusing on confessing your love to someone else. Is it possible that you are falling in love with Shiki instead? What does this mean for the two of you, since you are a human doomed as "toast"? Can Shiki come up with a way to save you?

Walkthrough
Episode 1
(C) "A lack of sleep."
(A) "It's cute."

Episode 2
(A) "You look happy."
(A) "Yeah."

Episode 3
(A) "I'm sorry."
(A) ...is cute.

Episode 4
(C) "I can't!"
(C) "Your face is all red."

Episode 5
(C) "..."
(A) "It's still mean to say."

Episode 6
(B) "He's like a cat."
(A) "Thank you."

Episode 7
(A) "Were you worried about me?"
(B) "I love you."

Episode 8
(A) "I like you."
(A) "I was the one who hugged him."

Episode 9
(B) "Were you jealous?"
(C) Close your eyes.

Episode 10
(A) "He's a friend."
(A) "I want Shiki!"

Episode 11
(A) "I'm sorry."
(C) "Why did you do that?"

Episode 12
(A) "It's so pretty."
(C) "This is bad, isn't it?"

Episode 13
(A) "I want to go to the demon realm."
(C) "How can you say that?"

Episode 14
(B) "That's impossible!'
(A) "Yes."

Episode 15
(B) Yell to the cat for help
(A) Try touching him 

CGs