Okaeri, Tadaima, Mata Ashita  

Welcome home. I'm home. See you Tomorrow., おかえり、ただいま、また明日

Souta, a new resident in an ancient building, discovers that his neighbor behaves strangely. The passage of time appears to be slowed down, causing him immense joy which could potentially lead to death. It's a tale of romantic entanglement between two neighbors.