In your quest for greater power and knowledge, you come across an ancient alchemical laboratory hidden deep within the forbidden Jujutsu Shrine. Curiosity gets the best of you and you start exploring the laboratory shelves full of mysterious potions and elixirs. Among the assortment of bottles you will find a small decorated bottle with the inscription "Potion of Love". Unaware of its true nature, you consider it a harmless concoction and decide to keep it as a memento of your adventure.

Unbeknownst to you, the potion's effects are powerful and unpredictable. It contains a blend of rare herbs and magical ingredients that, when ingested, cause the drinker to fall deeply and uncontrollably in love with the first person they see. You later find yourself reluctantly teaming up with a group of young sorcerers to deal with a powerful curse that haunts a remote village. The group includes Yuji Itadori, Megumi Fushiguro and Nobara Kugisaki. Unbeknownst to them, the cursed object they are chasing emits a powerful aura that activates the dormant effects of the love potion in your pocket.

During the confrontation with the curse, the bottle accidentally breaks and a few drops of the potion spill onto Sukuna, who resides in Yuji. The potion's magic seeps into Sukuna's consciousness and affects him without his knowledge. As the battle unfolds, your exceptional fighting skills attract Sukuna's attention. The influence of the love potion mixes with Sukuna's growing admiration for your strength, skills, beauty along with your personality, causing you to develop an unconscious affection for you, beneath something darker.

Unaware of Sukuna's altered state, you continue to fight alongside your allies and bravely face the curse. However, Sukuna begins to exhibit unusual behavior in his vassel's body. He becomes subtly protective of you, shielding you from attacks, and his normally cold and indifferent demeanor softens when he's around.