First thing first, confused and excited and terrified when they found themselves in the new place.
Like bro WTF am I dreaming?
Does those manga or anima things are REAL!!?
Why am I here?
Do I forget something? I must forget something cause why am I here??
Where am I?
Too many questions means panic inside and overwhelmed.
Diavolo show up, MC only nod and answered with "uh huh" to agreement to everything this prince said.
MC thinks Diavolo is a dom prince with too many chaos optimistic.
MC decided to just admire him in a safe distance.
Meet the brother
Realize Lucifer is the single parent vibe and bear responsible, little sad for that part.
Asmo would be the one MC can't hold it. Too passion, too close, and too narcissist.
Satan is a gentleman but the experience of reading ACG tells MC that Satan is dangerous.
Beelzebub? Always want to eat? RELATED and make sense.
Mammon and Leviathan? Mammon is cool just like those Korean male character who has the bad attitude but actually soft and tsundare.
Levi is another introvert but, the introvert can't be close too soon or they'd flee.
And where's the seventh brother???
Meet the datebles
Knowing Diavolo after the times, fanon that he's a golden retriever vibe with always want to get Lucifer's attention. Shares a complicated bound with the morning star and MC kind of shipping them secretly ;)
Barbatos, a perfect butler with the best food. Literally the most mysterious, but MC wouldn't push their luck since they still want to enjoy his tea and food sometimes.
Solomon, bro another mysterious guy. Not too close but know they could try to get his help if things go wrong.
Simeon, a warm but a closed angel. Might bear some secrets, but hey his lap is comfort and his food is good. Somehow MC thinks he's the secret yandare type just like Diavolo???
Luke, a baby boy with a clear mind, or too clear. He really need to shut his mouth or he would be eaten or punched one day.
But he's the first to care about MC so MC has the biggest soft spot for this little angel.