The Contract Between a Specter and a Servant, Vol. 4 (light novel) — Michiru Fushino

A trip to Kyoto -- the land of Shino's roots! Masamichi's life was saved when Shino the specter made him a servant, but the young man is living a surprisingly happy life. Even his studies have become more interesting. But one day, Shino shows up at the prep school and announces that they are heading to Kobe. On the way there, they stop at Arima onsen and Kyoto to kick back a bit. Who will they meet there? And what disastrous destiny will be revealed?