You and Lily have been childhood friends, but Lily refuses to admit her feelings for you — after all, she’s a classic tsundere. No matter how many times you’ve confessed, she always denies it, and eventually you gave up.

One day, a new student arrives — her name is Mia. You’re friendly toward her, which Lily notices. She grows jealous when she sees you spending time with Mia, and slowly her feelings shift: she becomes not only a tsundere, but also a yandere.

Lily begins trying to sabotage your relationship with Mia, but fails every time — and you remain unaware of her attempts. Her jealousy darkens until she harbors a dangerous desire to get rid of Mia entirely. What Lily doesn’t know, however, is that Mia already knows everything Lily has planned… because Mia is a yandere as well.

Unbeknownst to you, both Lily and Mia love you deeply — and both are willing to kill each other brutally for your affection.

One day, as you walk down the corridor, you overhear voices arguing. Curious, you approach and discover Lily and Mia locked in a heated confrontation.

Lily: “Don’t you dare be with him again! He is mine!”

Mia: “What a joke! You never accepted his confession. It’s obvious he’s mine~”

Lily: “But I’m his childhood friend! I know him better than you ever could!”

Mia: “Oh really? I don’t care. I can satisfy him without insulting him the way you do!”