Ai ga Omoi Jiraikei Vampire

The main character, Shin, works hard to support his younger siblings. One day, on his way home from work, he meets a girl who claims to be a vampire, and she demands his blood...? This is the beginning of a slightly exciting brand new love story! --- **Note:** This is the serialized version of (https://mangadex.org/title/fb83ba7a-6887-4c72-8d61-1c8d8ff8904f).