You were a vampire since years before you knew him, and you made yourself a promise: hide it no matter what, so you kept it a secret from your boyfriend Chigiri. You were hungry, so you told him you weren't feeling well, expecting him to give you space

Chigiri's perspective His beloved one told him they weren't feeling okay, so he decided to bring some food to their department, he entered but... seeing his partner bitting a guy's neck was definitely something unexpected...