Quick answer — Aki Watanabe worked on I’ll Become a Villainess Who Goes Down in History (Color Design), By the Grace of the Gods (Color Design), Black Blood Brothers (Color Design) and 3 more anime.
Aki Watanabe worked on I’ll Become a Villainess Who Goes Down in History (Color Design), By the Grace of the Gods (Color Design), Black Blood Brothers (Color Design), To Heart (Color Design), I'm Standing on a Million Lives (Color Design), My Unique Skill Makes Me OP even at Level 1 (Color Design).
