S1·E8 Another Apprehension

In order to have Chacha and her crew on her side, Sarasa propose to do the ‘dance of death' with Chacha which she eventually won. The pirates enemy's ship called the Boat of Koshou found the ‘invisible port' just as the duel ended and told them to hand Tatara over. On land, the Red elite army called the Red Lei Shin (led by Shidou) is approaching fast to the port while the Red Navy is also surrounding the port via the sea. Pondering on their next move, Ageha sends his owl to literary tell them about the cannons on board the Koshou's ‘main ship' that can be used to attack the Red Navy.