Jashin and Walla Sinchi (OC) from Fan AU

OP: Jashin-chan's enthusiasm wasn't going to last forever. --- >>> Walla Shinchi: Medusa is a snake woman or a half-cobra human; I honestly have no idea how demons' human rights and lefts work. Well, when she went missing for a month, Yurine had to report her as a lost pet. Honestly, she's so manipulative and shameless that I don't know how many more years Medusa has to put up with her because I've already grown three humps from spending so little time with her... "She's someone who doesn't deserve much, who longs to be the drama queen with her friends who tolerate her. If it weren't for this plan that's driving me crazy, I'd cut her out of my life." Jashin is so demonic that she makes the other demons I've met look like saints. But anyway, this makes me think that being a demon is simply a natural condition of being born into a species. In conclusion, as a character in a slice-of-life, gang, dark comedy, he's great, but in this case, only his immortality seems useful to me, since spending many years as an invincible being would give me an advantage. (Coughs) Maybe...