Aika Tsube

Aika Tsube (津辺 愛香) is one of the lead characters of Ore, Twintail ni Narimasu. series.

Aika is Sōji Mitsuka's childhood friend, she lives the next door to him, and their rooms' windows are facing each other, so they are able to talk every time. She gained the Tail Gear and transform into Tail Blue (テイルブルー) the time Sōji gained his power.

Appearance
Aika has dark blue hair and red eyes. Her long hair is styled into twintails with white ribbon, which can reach her waist. She is 157 cm (5'1").

In the 16th volume, Aika is transformed into a little girl similar to Tail Red.

Personality
Aika has the personality of a normal high school student and is by far the most down-to-earth member of the main cast, often finding herself speechless before the ridiculous antics happening around her and takes more time than anyone in the Twintail Club to accept the supernatural elements appearing in her world, leading her to become the 'straight man' of the group.

She is also pretty abrasive when she feels that her position with Soji is threatened when Thouars is doing something 'stupid' (sometimes both at the same time) or provoking her for her flat-chest in both civilian and tail forms, resorting to violence and threats against the perpetrator.

She harbors feelings for Sōji and often displays this in a tsundere fashion. When she was hypnotized she even had an erotic vision of being in bed with him. She is often prone to jealousy when he interacts with other girls and was even downhearted learning Sōji got engaged.

Background
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Chronology
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Powers and Abilities
Her weapon is Wave Lance and her deathblow is Execute Wave.

Since at a young age, Aika has learned martial arts from her grandfather, and her main ability is to attack high places from even the lowest grounds.

Eternal Chain
Aika's Chain form as Tail Blue. She gains more armor and an increase in power.

Sōji Mitsuka
Aika and Sōji are childhood friends, their rooms are facing to each other's, and they seemingly have been together ever since then. Though it has been hinted that she has feelings for him, which the latter doesn't seem to realize it.

Trivia

 * Her birthday is August 8.
 * It is hinted in Episode 1 that her favorite food is curry.