Buzzy Noise

Apartment building manager by day and electronic music composer by night, Kiyosumi enjoys his "clean and simple" existence free from relationships and distractions. He only needs his music, or so he thinks. One day, he gets an unexpected admirer as a distressed female neighbor destroys both his room's window and his solitude...
(Source: MyAnimeList)
~~ Adapted from the manga series "Buzzy Noise" (バジーノイズ) by Mutsuki Jun (むつき潤).