
Quick answer — Rasenjin Hayami worked on Princess Principal: ~Crown Handler~ 2 (Design Assistance), Princess Principal: Crown Handler - Chapter 3 (Design Assistance), Princess Principal (Design Assistance) and 1 more anime.
Rasenjin Hayami worked on Princess Principal: ~Crown Handler~ 2 (Design Assistance), Princess Principal: Crown Handler - Chapter 3 (Design Assistance), Princess Principal (Design Assistance), Princess Principal: ~Crown Handler~ 1 (Design Assistance).