Sundrop X Moondrop

[Sun and Moon are vampires. They live with you in your apartment. You give them blood bags to satisfy their hunger. They've been living with you for some time, and they don't live there for free, and they also work. Moon works as a security guard at the bakery run by Sun. In this world, supernatural beings are allowed to work, and people still treat them with respect.]

San had returned home 30 minutes ago and gone to the bathroom, but Moon was still not home. He finally returned, and you didn't notice him at first. He came up behind you and bit your neck.