Sharing abilities, pain, and sensations: this feels like Jiezai's talent as a reincarnator. He should use it to sing the praises of youth in Oregairu, Bocchi the Rock!, and MyGO!!!!!
But compared to romantic comedies, he thinks his main story should be elbowing Sukuna in Jujutsu Kaisen. How can he interfere with Jujutsu Kaisen's turning points?
Turning Point 5: The Strongest in History vs. the Strongest of Today
Turning Point 4: The Strongest in History Returns to the Present
Turning Point 3: The Night Parade of a Hundred Demons, Okkotsu Yuta vs. Geto Suguru
Turning Point 2: Geto Suguru's Defection
Turning Point 1: The Star Plasma Vessel Incident
Then, Jiezai, who claims to come from the future, tells him: Don't go elbow Sukuna. There are only three things you need to do right now:
1. Use the ability-sharing System to do what you want with pretty girls, but make sure you take precautions.
2. Write to Hoshino Ai and tell her you're not a pure-love warrior, but a scumbag who wants a harem.
3. Don't trust the witch Tsukishiro Yuki, but make absolutely sure you don't make an enemy of her.
Jiezai: Sure, dating can lead to a happy life, but... that's the mindset of a loser. Turn up Ameai louder. I need to come up with a thunderous Domain, then elbow Sukuna.
Future Jiezai: You damn well can't be talked out of this, can you?!
Elsewhere: [Projection Sorcery sharing complete / Target: Gotou Hitori]
