I'm Doomed, Surrounded by Obsessive Jujutsu Sorceresses

After transmigrating into Jujutsu Kaisen and awakening the Six Eyes from the start, Miyamoto Jing thinks he must be the protagonist. When the Shinjuku Showdown comes, he and the Prison Realm teacher will join forces, and in no time they will elbow Sukuna into a pile of Sukuna, leaving no need for any Cursed Spirit Battle Continent. What do you mean the Shinjuku Showdown ended more than fifty years ago? No problem, I can still have a blast fighting aliens. What do you mean I only have a pair of Six Eyes and no Cursed Technique? No problem, I can max out my cursed energy efficiency and control. Even throwing punches alone will make me a formidable fighter. What do you mean I have even less cursed energy than Mai Zenin? What do you mean I got cut in half at the waist by a Grade 1 Cursed Spirit? Just as Miyamoto Jing, exhausted by this godforsaken life, decides he might as well die and prepares to leave behind one last line, "I'm truly sorry I couldn't satisfy you, esteemed Grade 1 Cursed Spirit," he awakens the "Introvert System." It calculates rewards based on how sad people are after his death, then lets him be reborn in another parallel world with those rewards. And so Miyamoto Jing sets out on a one-way road to becoming someone's beloved, only to die in front of them. Wait, what do you mean there's no Yuji Itadori, only Yuji Itadori's sister, Yuji Yuka? What do you mean there's no Satoru Gojo, only Gojo Kiriko? What do you mean Ryomen Sukuna is a mature, beautiful woman? What do you mean they all want to lock me in a basement?