Goodbye, Red Beryl

"Then just kill me."

Akihiko has never known his true worth. Ever since he was a child, no one has ever needed him. On the verge of giving up on life, he's saved from certain death by Kazushige, a vampire who's doomed to an eternity of loneliness. To repay Kazushige, Akihiko continues to visit him, much to Kazushige's chagrin. Fed up, Kazushige drives him away. But he soon realizes that Akihiko's awkward kindness has touched a part of him that now yearns to learn more about Akihiko.

(Source: MangaPlaza)

Note: Includes three extra chapters.