I always thought my student life would pass by without much to remember. Getting to class early for no real reason, half-listening to the teacher with my mind elsewhere, longing for the bell to ring so I could go home without saying a word to anyone. Sometimes, I’d wish for something—anything—to break up the monotony, but deep down, I figured my youth had already slipped away. "I am sparky happy Tenshi-chan! An angel on a mission to make the world overflow with happiness!" And as if in answer to my silent prayers, an unbelievably suspicious angel appeared before me, cherry blossoms swirling around her. "If you're really an angel, then make me happy." "Do I take that as a proposal? Not even an angel can help someone who won’t reach for happiness themselves." "Happiness... But where am I supposed to find mine?" "That's easy! The answer is love, of course." "Love, huh..." I've never been in love, nor has anyone loved me. But maybe, just maybe, if I could fall in love, I might still have a chance to live my youth to the fullest. "Very well, this Tenshi-chan will bless you until the day you become the true protagonist of your story." And so begins the story of how I become a "Protagonist"—whatever that means. [Translated and edited from the official website]