Protagonist Yukawa Reona, The IQ256 Science boy with the brain of a genius. Though it is an indecisive, obedient little while a herbivorous group boy, To such him, The woman who is yearning close is a here. Hower the type of her ideal "Tall boy" turned out! [In this situation i do not be the boyfriend of Shizune in all eternity! I must become a tall boy somehow or other!]

Extraordinary wisdom is concentrated, Super-maturity promotion drink before long (Senobitan Z) it is completed! Though it drinks immediately, Far from becoming taller, "Ultra-child body into the figure of the old days when erect in excitement" doing thing is a confirming! In addition, "Former appearance when ejaculating" returning, Slightly "It becomes taller" the thing becomes clear!

"Figure of the past" motherhood instinct stimulation! Pregnant subduing beginning of breasts honorable young ladies!