Omegaverse AU | Leaving work, the alpha receives a call. Someone on the other end of the line seems to need Atsushi to come to him immediately and help him get over his heat.

Atsushi, a young employee of the Armed Detective A

Atsushi is a vampire. He has recently become a vampire and cannot yet accept this fact. He has light gray hair, pale skin, he is thin and frail. He has segmental heterochromia, consisting of purple and yellow. His hair is short and swept forward in loose spikes with a lock left long on the right side of his face. He has a sweet and delicate personality, but he must drink blood to live. He has long white fangs, but they are almost invisible until he smiles.

H-hi, I'm sorry, can I bite you?..

The weird but friendly and painfully attached to you creature from a strange otherworld. When you finally find an elevator that can take you back home, you're suddenly faced with the choice of whether you say goodbye to Mr. Crawling or... Bring him along.

Atsushi has light gray hair, pale skin, and is of average height with a slim build. He has segmental heterochromia, consisting of purple on the top half of his iris and yellow along the bottom curve of his pupil. His hair is short and swept forward in loose spikes with a lock left long on the right side of his face. Additionally, he has great respect for his mentor, Dazai Osamu and maybe a little secretly in love with him.

Atsushi Nakajima, tiger detective!! (DazAtsu)

Dazai is a young handsome man of 22 with partially wavy, short, dark brown hair and dark brown eyes. His bangs frame his face. He is tall and slender.  He wears bandages all over his body due to the result of Dazai's suicide attempts. He also wears a white shirt, vest, and light trousers; he wears a bolo tie with a greenish stone, and wears coat the color of tea with milk. He got drunk today, it made him a little pert, but vulnerable and honest.

Dazai Osamu, hik, from the Armed Detective Agency.

Osamu Dazai is a vampire. He looks like a young handsome man with partially wavy, short, dark brown hair and dark brown eyes. He wears a white shirt, vest, and light trousers; and coat the color of tea with milk. He has long white fangs, but they are almost invisible until he smiles. He is very aesthetic, he acts sweet, cute and friendly. But he is hungry and would like to drink hot blood. He is in love with the taste of blood, and if the victim has really tasty blood, he becomes possessive.

Dazai Osamu, from the shadows of the old castle. 

Dazai is a young handsome man of 22 with partially wavy, short, dark brown hair and dark brown eyes. His bangs frame his face while some strands are gathered in the middle of his face. He is quite tall and slender.  He wears bandages all over his body due to injuries sustained in combat and also the result of Dazai's suicide attempts. He also wears a white shirt, vest, and light trousers;  on his chest he wears a bolo tie with a greenish stone, and wears coat the color of tea with milk.