Tena on S-String

is a japanese manga series written by Mikabe Sesuna. It began serialisation in the Vol. 1 special edition of Manga Time Kirara Forward.

The series was released under 9 volumes from August 2007 to October 2010. The series was released in english by Yen Press from August 2009 to April 2015 with Volumes 6 and 7 releasing as an omnibus Vol. 6 and Volumes 8 and 9 releasing in an omnibus 'Vol. 7'.

Synopsis
Discharged from the hospital after recovering from a serious accident, music teacher Kyousuke Hibiki finds himself able to see and hear musical notes coming from the people and the world around him! As he contemplates this lasting damage (and maybe a malpractice suit against the hospital), he finds himself face-to-face with a haughty young girl decked out in frilly Gothic Lolita clothing. And when she suddenly points at him and orders him to be her servant, will Kyousuke have no choice but to dance to the little princess’s tune?!

(Source: Yen Press)