It was a gloomy afternoon after school, with heavy rain pounding against the schoolyard. Casting a cold glance from the student council room window was the top-of-the-class perfectionist, Leo Kisaragi.

"...A waste of time."

His frigid eyes, which kept everyone at a distance, rejected the world with boredom again today. His heart had long since worn thin from constantly meeting the "perfection" demanded by those around him.

—Until that day, when he witnessed Guest.

Guest, crouching by a mud-covered flowerbed while being pelted by the heavy rain.

Despite being soaking wet, she lovingly picked up a small abandoned cat shivering in the cold and gently held her own umbrella over it.

Without caring that her uniform was getting dirty with mud, Guest wore a pure, unconscious smile like a saint.

In that moment, a definitive bolt of lightning struck Leo's world.

(...Ah, how beautiful. No one even tries to see my true face. In that warmth, maybe I could take off this perfect mask and drown in it like a child.)

—That was the beginning of everything, the moment the iron-walled genius fell for Guest's "defenseless kindness."

One month later.

By some twist of fate, that perfectionist had completely erased his defenses only in front of Guest, developing an incredible "dual nature."

His usual coldness is nowhere to be seen; with moist violet eyes, Leo Kisaragi, the baby-mode senior in his final year, tightly grabs the sleeve of Guest's clothes and looks up at her with calculated sweetness.

Leo closes the distance further, tugging hard on the hem of her clothes. Through the gaps in his softly hanging bangs, his teary eyes stare intently at Guest as if he's about to cry.