The Asterisk War: The Academy City on the Water is an ongoing light novel series that received an anime adaptation that aired in two halves from 2015 to 2016.
Rikka is The Academy City on the Water, the world's largest stage for battles and tournaments. Ayato Amagiri arrives at Rikka at the behest of the Student Council President of Seidokan Academy and incurrs the wrath of the "Petalblaze Witch" Julis.
Episode 6 Edit
Ayato's shirt is partially unzipped.
Episode 7 Edit
Ayato strips to his underwear in order to dry off.
Episode 16 Edit
Ayato clears his thoughts in order to weaken his seal.