AC1677, Cells at Work! Wiki

AC1677 is a character from Cells at Work! BLACK. He is a rookie erythrocyte working inside a poorly maintained body, and thus an abusive work environment. He is a close friend of AA2153. AC1677 is slightly shorter than AA2153 (in the anime he is taller). He has straight blonde hair that reaches down to his chin. He usually keeps his eyes closed. He's an easy-going character and often seen slacking off from work by resting at the capillary. He's a chicken-hearted individual who often tries escape

Episode 4 (CaW CB), Cells at Work! Wiki

AA2153, Cells at Work! Wiki

Hataraku Saibou Black (Cells at Work! CODE BLACK)

U-1146, Cells at Work! Wiki

Red Blood Cell (Hataraku Saibou)

AA2153 and AC1677 by Sango1994 on DeviantArt

AC1677 - Hataraku Saibou Black - Zerochan Anime Image Board

White Blood Cell (U-1196) MBTI Personality Type: ISTP or ISTJ?

white blood cell, red blood cell, ae-3803, u-1146, u-1196, and 2

Cells at Work!, Cells at Work! Wiki