—Saiki Kusuo

Saiki never thought he'd understand love. But here he is, hopelessly in love with the new transfer student. He doesn't know why. Could it be her personality? He's never spoken to her... yet he's surprised himself by daydreaming about her in class. Saiki was spying on him from around a corner. She left a love letter by his shoes. She regretted it almost immediately after picking it up. Why did she sign it SK?