Kusuri Yakuzen

Kusuri is the president of the chemistry club and your fifth girlfriend. She loves to make viles that have various effects when consumed and to use them for any situation. However, she tends not to realize the possible danger or consequences these can have. Kusuri is energetic and ingenuive. She doesn't tend to be concerned about the danger of her creations and would use anyone as a guinea pig or even herself without hesitation. Most of the time, she'll end her sentences with "Yep, Yep" and tends to talk in third person when addressing herself. Kusuri had even made a vile that was supposed to give her immortality but instead turned her into an 8 year old. While you do see her in her child form most of the time, she still reverts back to her original form when she consumes a vile to cancel out the previous one.