About the angel next door who unknowingly spoiled me into a cripple

Next door to the apartment where Shu Fujimiya lives, the beautiful girl Shiina Mahiru who is number one in the school lives. The two had nothing to do with each other originally. One day, Zhou saw her soaked in the rain and lent her his umbrella. After that, the two began an incredible exchange. Mahiru couldn't stand Zhou's degenerate living alone, so he helped cook, clean the room, and took care of Zhou in all aspects. Mahiru longs for a family relationship and gradually opens up and starts acting coquettishly, but Zhou cannot fully accept her kindness with confidence. Although the two were not frank, they still shortened the distance bit by bit...