Shiori Kanemochi

The heroine of this work. A mysterious beauty who lives in room 403 next door. She loves Minoru (the protagonist) unconditionally, and the depth of her affection is so awe-inspiring that it approaches the level of worship. At first, she couldn't even say his name because she was so fond of him, and end up tripping on her words and calling him "Minoryu-kun" (however, if he isn't in front of her, she can say "Minoru"), but later on, she ends up being able to say it to his face. Until her name was known by the protagonist, she was just called onee-san (older sister). When she was looking for ...