My Friend Is NOT From This Neighbourhood

CJ is a demon summoned by Celia, a rich girl bored out of her mind. As per demon custom, CJ is obedient to her. The two have silly shenanigans together whilst also trying to keep a secret about their rather brittle contract. Along the way, Tensa finds out about CJ, leading to him jokingly proposing a deal with the demon. When the contract between them accidentally forms by complete carelessness, Tensa is cursed with obedience to CJ, lest he suffer the consequences.