Shin Koihime†Eiyūtan Edit
First debut in Shin Koihime † Eiyuutan. Batetsu is one of new members of the Ba family to be introduced along with Bakyu.
Shin Koihime † Musou - Kakumei Edit
The youngest of the Ba siblings. She is the most energetic, playful and air-headed in the family. She's also very cheerful and loves to hangout with Batai and the other girls.
Sex is a new thing for her, and treats it as though a game. She really does love Kazuto just like Batai does and is willing to engage in any lewd situations at any time. (Usually alongside Batai)
She doesn't care much about sex either. All she want is the good feeling from it.
- She is younger than Batai but her body is fully developed. (Although she don't know much about how to use it effectively with men.)
- She love to hang out with Batai due to the fact that both share similar active and playful personalities.
- Her historical counterpart, Ma Tie, was never part of Shu Han (Shoku in Japanese). Instead, he had been executed alongside his father and brother, Ma Teng (Batai's counterpart) and Ma Xiu (Bakyū's counterpart). According to the Romance of the Three Kingdoms, this is what leads to his eldest brother, Ma Chao (Bachō's counterpart), to go to war against Cao Cao (Sōsō's counterpart).