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Episode 18 overhauls the second OP's sequence with new images and animations of the characters in their summer uniforms as well as dancing on the beach in casual summer wear, highlighting the start of the summer break portion of the series.The OP for that episode and the episode after that are sung by the voice actors of those six students instead of the ones who usually sing the theme tune.
Episode 7 follows six students in a group during a field trip to Kyoto.Irina and Ritsu appear in the first OP after their introduction in Episodes 4 and 9, respectively.Assassination Classroom: With the opening theme.Both the opening and ending of the final episode credits include ALL of the characters, even those who moved on very early in the series. Like the ending credits, characters are added or subtracted from the opening as they are introduced to the cast, or they move on. The ending credits evolve with changes in the cast or relations among the characters, such as the removal of characters who move on, or a character who was revealed in that episode to be buff going shirtless in the credits.After she wakes up in Episode 7, the shot is changed to show her waking up, followed by the now-empty stasis tank. The end credits of Aldnoah.Zero Season 2 end with a shot of Princess Asseylum lying comatose in a suspended animation tank.Akuma no Riddle has a completely different ending for every episode, each corresponding to one of the students of class Black.