
Quick answer — Ayumi Sekine worked on IDOLiSH7 Second BEAT! (Series Composition), IDOLiSH7 Third BEAT! (Series Composition), IDOLiSH7 (Series Composition) and 5 more anime.
Ayumi Sekine worked on IDOLiSH7 Second BEAT! (Series Composition), IDOLiSH7 Third BEAT! (Series Composition), IDOLiSH7 (Series Composition), OVERTAKE! (Series Composition), Fate/Grand Order: First Order (Script), The Night Beyond the Tricornered Window (Series Composition), Ms. Koizumi Loves Ramen Noodles (Script), makuranodanshi (Script).