FEH Arena Run Tier 21 to 21. Legendary Hinoka Bonus Hero. October 1st.

This is also book 7 units but who cares.

Timestamps:
0:00 Team introduction
2:30 1st Win
4:46 2nd Win
7:08 3rd Win
9:40 4th Win
13:59 5th Win
17:09 Free Summon