How I Came to Believe I Don't Deserve to Be a Special Grade Cursed Spirit

[The following is a rough draft of the blurb. It will be revised before the story begins.] Mahito wants to wipe out all the jujutsu sorcerers in one fell swoop, so he packages up a Special Grade, dormant cursed spirit he has discovered and sends it to Jujutsu High. Due to a courier's mistake, however, it ends up at the Armed Detective Agency instead. After spending some time there, the Port Mafia hears that the Agency has gained a powerful new member whose ability is even stronger than Dazai's, and decides to take it for themselves. After a fight, the cursed spirit ends up spending some time at the Port Mafia. Then, in the middle of the struggle between the Port Mafia and the Agency, it is temporarily summoned to the world of Heroic Spirits to take part in a Holy Grail War. Later, the Port Mafia and the Agency realize that the cursed spirit disappears at night. Suspecting a third party has infiltrated the city, they happen to run into Gojo Satoru, who has come to Yokohama looking for his package. Both sides mistake him for the third party and start fighting him. The cursed spirit wonders: I'm supposed to be a dormant cursed spirit, so why am I acting against my nature? So, while all three sides are locked in a fierce battle, the cursed spirit walks up to Gojo Satoru, kneels, and sincerely begs him: Please kill me. Later, Mahito discovers that the cursed spirit who was supposed to wipe out all the jujutsu sorcerers has become close with Gojo Satoru. Not only that, it has also made friends with a bunch of lunatic humans. Furious, he berates it: You don't deserve to be a Special Grade cursed spirit! No Special Grade cursed spirit would ever be like you. You befriended jujutsu sorcerers, and now you're even getting along with humans! You've brought shame on all of us! Cursed spirit: ...Don't say that. I think so too. Theme: Every success begins with the first step you take.