Yaku Yakuzen

Yaku Yakuzen is a character in The 100 Girlfriends Who Really, Really, Really, Really, Really Love You. She is Rentarou's 16th girlfriend, and Kusuri's maternal grandmother. Yaku is currently retired, and was a combat medic in her younger years. Yaku has long burgundy hair (reaching past her knees), and bright green eyes like the other members of her family. She has a small ahoge on the top of her head, and has her hair styled in a hime-cut. Due to having ingested a more potent, near-perfect version of Kusuri's immortality drug, Yaku has the appearance of an eight-year-old child. She is petit...

Yaku is mature, and has a vast amount of life experience. She usually acts grandmotherly towards Rentarou and the other members of the Rentarou Family, and enjoys their youthful antics. Yaku also likes teasing Rentarou, due to him being her second significant other in her lifetime, and encourages Re...